提问人：HM Tanbir 提问时间：1/12/2023 最后编辑：HM Tanbir 更新时间：1/12/2023 访问量：184
为什么在 gmail 主题中出现连字符？
Why getting hyphen in gmail subject?
问：
我正在使用 Devise gem，当我发送我的 Web 应用程序时，每次我都会在 gmail 主题中得到额外的连字符 （-），如下所示：
我想知道我在 gmail 中收到这个连字符，但我在其他客户端（如 Outlook 或 Yandex 或 Thunderbird 邮件客户端）中没有遇到这个问题。
我关于这个主题的 ruby 代码：
def confirmation_instructions(record, token, opts={})
mail = super
if record.german?
mail.subject = 'Herzlich Willkommen bei WebMail'.strip
else
mail.subject = 'Welcome to WebMail'.strip
end
mail
end
mailer_view（confirmation_instructions.html.erb）：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:o="urn:schemas-microsoft-com:office:office" style="font-family:roboto, 'helvetica neue', helvetica, arial, sans-serif">
<head>
<meta charset="UTF-8">
<meta content="width=device-width, initial-scale=1" name="viewport">
<meta name="x-apple-disable-message-reformatting">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta content="telephone=no" name="format-detection">
<title></title>
</head>
<body style="width:100%;font-family:roboto, 'helvetica neue', helvetica, arial, sans-serif;-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%;padding:0;Margin:0">
<span style="display:none !important;font-size:0px;line-height:0;color:#ffffff;visibility:hidden;opacity:0;height:0;width:0;mso-hide:all"></span>
<div class="es-wrapper-color" style="background-color:#F6F6F6">
<!--[if gte mso 9]>
<v:background xmlns:v="urn:schemas-microsoft-com:vml" fill="t">
<v:fill type="tile" color="#f6f6f6"></v:fill>
</v:background>
<![endif]-->
<table class="es-wrapper" width="100%" cellspacing="0" cellpadding="0" style="mso-table-lspace:0pt;mso-table-rspace:0pt;border-collapse:collapse;border-spacing:0px;padding:0;Margin:0;width:100%;height:100%;background-repeat:repeat;background-position:center top">
<tr>
<td valign="top" style="padding:0;Margin:0">
<table class="es-header" cellspacing="0" cellpadding="0" align="center" style="mso-table-lspace:0pt;mso-table-rspace:0pt;border-collapse:collapse;border-spacing:0px;table-layout:fixed !important;width:100%;background-color:transparent;background-repeat:repeat;background-position:center top">
<tr>
<td align="center" style="padding:0;Margin:0">
<table class="es-header-body" cellspacing="0" cellpadding="0" bgcolor="#ffffff" align="center" style="mso-table-lspace:0pt;mso-table-rspace:0pt;border-collapse:collapse;border-spacing:0px;background-color:#FFFFFF;width:650px">
<tr>
<td class="esdev-adapt-off" style="padding:0;Margin:0;padding-left:20px;padding-right:20px;background-color:#ffffff" bgcolor="#ffffff" align="left">
<table width="100%" cellspacing="0" cellpadding="0" style="mso-table-lspace:0pt;mso-table-rspace:0pt;border-collapse:collapse;border-spacing:0px">
<tr>
<td class="es-m-p0r" align="center" style="padding:0;Margin:0;width:610px">
<table width="100%" cellspacing="0" cellpadding="0" role="presentation" style="mso-table-lspace:0pt;mso-table-rspace:0pt;border-collapse:collapse;border-spacing:0px">
<tr>
<td class="es-m-p40r es-m-p40l" style="padding:30px;Margin:0;font-size:0px" align="center"><img class="adapt-img" src="https://lvddhx.stripocdn.email/content/guids/CABINET_8087737a290d7f16a2c9e3ecdca34c00/images/14811631711643580.png" alt style="display:block;border:0;outline:none;text-decoration:none;-ms-interpolation-mode:bicubic" width="180"></td>
</tr>
</table></td>
</tr>
</table></td>
</tr>
</table></td>
</tr>
</table>
<table class="es-content" cellspacing="0" cellpadding="0" align="center" style="mso-table-lspace:0pt;mso-table-rspace:0pt;border-collapse:collapse;border-spacing:0px;table-layout:fixed !important;width:100%">
<tr>
<td align="center" style="padding:0;Margin:0">
<table class="es-content-body" cellspacing="0" cellpadding="0" bgcolor="#ffffff" align="center" style="mso-table-lspace:0pt;mso-table-rspace:0pt;border-collapse:collapse;border-spacing:0px;background-color:#FFFFFF;width:650px">
<tr>
<td align="left" style="padding:0;Margin:0">
<table width="100%" cellspacing="0" cellpadding="0" style="mso-table-lspace:0pt;mso-table-rspace:0pt;border-collapse:collapse;border-spacing:0px">
<tr>
<td valign="top" align="center" style="padding:0;Margin:0;width:650px">
<table width="100%" cellspacing="0" cellpadding="0" role="presentation" style="mso-table-lspace:0pt;mso-table-rspace:0pt;border-collapse:collapse;border-spacing:0px">
<tr class="es-mobile-hidden">
<td style="padding:0;Margin:0"><p style="Margin:0;-webkit-text-size-adjust:none;-ms-text-size-adjust:none;mso-line-height-rule:exactly;font-family:roboto, 'helvetica neue', helvetica, arial, sans-serif;line-height:24px;color:#333333;font-size:16px;width:0;height:0;border-top:0px solid transparent;border-left:600px solid transparent;border-bottom:20px solid transparent"></p></td>
</tr>
</table></td>
</tr>
</table></td>
</tr>
</table></td>
</tr>
</table>
<table class="es-content" cellspacing="0" cellpadding="0" align="center" style="mso-table-lspace:0pt;mso-table-rspace:0pt;border-collapse:collapse;border-spacing:0px;table-layout:fixed !important;width:100%">
<tr>
<td align="center" style="padding:0;Margin:0">
<table class="es-content-body" style="mso-table-lspace:0pt;mso-table-rspace:0pt;border-collapse:collapse;border-spacing:0px;background-color:#ffffff;width:650px" cellspacing="0" cellpadding="0" bgcolor="#ffffff" align="center">
<tr>
<td class="es-m-p20r es-m-p20l" align="left" style="Margin:0;padding-bottom:20px;padding-top:40px;padding-left:40px;padding-right:40px">
<table width="100%" cellspacing="0" cellpadding="0" style="mso-table-lspace:0pt;mso-table-rspace:0pt;border-collapse:collapse;border-spacing:0px">
<tr>
<td valign="top" align="center" style="padding:0;Margin:0;width:570px">
<table width="100%" cellspacing="0" cellpadding="0" role="presentation" style="mso-table-lspace:0pt;mso-table-rspace:0pt;border-collapse:collapse;border-spacing:0px">
<table width="100%" cellspacing="0" cellpadding="0" role="presentation" style="mso-table-lspace:0pt;mso-table-rspace:0pt;border-collapse:collapse;border-spacing:0px">
<% salutation = if @resource.role == 'employee'
if @resource.userable.male?
@resource.german? ? "Lieber Herr" : "Dear Mr"
elsif @resource.userable.female?
@resource.german? ? "Liebe Frau" : "Dear Ms"
else
@resource.german? ? "Guten Tag" : "Dear "
end
else
@resource.german? ? "Guten Tag" : "Dear "
end
%>
<% email_name = if @resource.role == 'employee'
if @resource.userable.male?
@resource.userable.last_name
elsif @resource.userable.female?
@resource.userable.last_name
else
@resource.userable.full_name
end
else
Organization.find(@resource.userable.id).user.full_name
end
%>
<% creator_name = if @resource.role == 'employer'
Organization.find(@resource.userable.id).user.full_name
elsif @resource.role == 'sub_end_client'
Organization.find(Organization.find(@resource.userable.id).parent_id).user.full_name
elsif @resource.role == 'sub_employer'
Organization.find(Organization.find(@resource.userable.id).parent_id).user.full_name
elsif @resource.role == 'employee'
Employee.find(@resource.userable.id).organization.user.full_name
else
if Organization.find(@resource.userable.id).added_by.nil?
Organization.find(@resource.userable.id).user.full_name
else
Organization.find(@resource.userable.id).added_by.full_name
end
end
%>
<% creator_company = if @resource.role == 'employer'
Organization.find(@resource.userable.id).name
elsif @resource.role == 'sub_end_client'
Organization.find(Organization.find(@resource.userable.id).parent_id).name
elsif @resource.role == 'end_client'
if Organization.find(@resource.userable.id).added_by.nil?
Organization.find(@resource.userable.id).name
else
Organization.find(User.find(Organization.find(@resource.userable.id).added_by.id).userable_id).name
end
#Organization.find(User.find(Organization.find(@resource.id).added_by.id).userable_id).name
elsif @resource.role == 'sub_employer'
Organization.find(Organization.find(@resource.userable.id).parent_id).name
elsif @resource.role == 'employee'
Employee.find(@resource.userable.id).organization.name
else
if Organization.find(@resource.userable.id).added_by.nil?
Organization.find(@resource.userable.id).name
else
Organization.find(User.find(Organization.find(@resource.userable.id).added_by.id).userable_id).name
#Organization.find(@resource.userable.id).added_by.name
end
end
%>
<% role = if @resource.role=='employee'
if @resource.english?
"Employee"
else
"Arbeitnehmer"
end
elsif @resource.role=='employer'
if @resource.english?
"Employer"
else
"Arbeitgeber"
end
elsif @resource.role=='end_client'
if @resource.english?
"End Client"
else
"Endkunden"
end
elsif @resource.role=='sub_end_client'
if @resource.english?
"Sub End Client"
else
"Endkunden Sub-Benutzer"
end
elsif @resource.role=='sub_employer'
if @resource.english?
"Sub Employer"
else
"Arbeitgeber Sub-Benutzer"
end
else
if @resource.english?
"Admin"
else
"Arbeitgeber"
end
end
%>
<% if @resource.english? %>
<% if @resource.role == 'employer' %>
<tr><td>
<p><%= salutation %> <%= email_name %>,</p>
</td></tr>
<tr><td>
<p>We are very pleased to welcome you as our new webmail customer.</p>
<p>Your employer profile has already been successfully created.</p>
<p>To access webmail, please confirm your account using the button below and then set your personal password to activate the account.</p>
</td></tr>
<tr>
<td align="left" style="padding:0;Margin:0"> <%= link_to("Confirm account", confirmation_url(@resource, confirmation_token: @token), class: "es-button es-button-1", style: "mso-style-priority:100 !important;text-decoration:none;-webkit-text-size-adjust:none;-ms-text-size-adjust:none;mso-line-height-rule:exactly;color:#FFFFFF;font-size:16px;border-style:solid;border-color:#0e8799;border-width:10px 25px;display:inline-block;background:#0e8799;border-radius:8px;font-family:roboto, 'helvetica neue', helvetica, arial, sans-serif;font-weight:normal;font-style:normal;line-height:19px;width:auto;text-align:center") %> </td>
</tr>
<tr><td>
<p>Once you have successfully activated your account, you can log in to webmail with your email address and password and get started right away with the first steps such as creating employee profiles, sub-users and end clients. They will be notified by email once they have been successfully created. </p>
<p>For your employees, webmail is also available as a mobile app, which can be downloaded according to the mobile device at the links below: </p>
<p>For iOS: <a href="https://apps.apple.com/ch/app/webmail/id1557907123">https://apps.apple.com/ch/app/webmail/id1557907123</a></p>
<p>For Android: <a href="https://play.google.com/store/apps/details?id=com.webmail.ag">https://play.google.com/store/apps/details?id=com.webmail.ag</a></p>
</td></tr>
<tr><td>
<p>If you have any questions, please feel free to contact us by e-mail at: <a href="mailto:[email protected]">[email protected]</a> or by phone at <a href="tel:41716970000">+41 71 697 00 00</a>.</p>
<p>We are looking forward to a successful and pleasant cooperation!</p>
</td></tr>
<% elsif @resource.role == "end_client" %>
<tr><td><p>Dear <%= salutation %> <%= email_name %>,</p></td></tr>
<p>Sobald Sie Ihr Konto erfolgreich aktiviert haben, können Sie sich mit Ihrer E-Mail Adresse und Ihrem Passwort bei webmail anmelden und direkt mit den ersten Schritten, wie der Erstellung von Arbeitnehmer-Profilen, Sub-Benutzernund Endkunden, loslegen. Diese werden per E-Mail benachrichtigt, sobald Sie erfolgreich erstellt wurden.</p>
<p>Für Ihre Arbeitnehmer ist webmail auch als Mobile App verfügbar, welche dem mobilen Endgerät entsprechend unter den nachfolgenden Links heruntergeladen werden können: </p>
<p>Für iOS: <a href="https://apps.apple.com/ch/app/webmail/id1557907123">https://apps.apple.com/ch/app/webmail/id1557907123</a></p>
<p>Für Android: <a href="https://play.google.com/store/apps/details?id=com.webmail.ag">https://play.google.com/store/apps/details?id=com.webmail.ag</a></p>
</td></tr>
<tr><td>
<p>Bei Fragen können Sie uns gerne per E-Mail unter: <a href="mailto:[email protected]">[email protected]</a> oder per Telefon unter <a href="tel:41716970000">+41 71 697 00 00</a> erreichen.</p>
<p>Wir freuen uns auf eine erfolgreiche und angenehme Zusammenarbeit!</p>
</td></tr>
<% elsif @resource.role == "end_client" %>
<tr><td><p><%= salutation %> <%= email_name %>,</p></td></tr>
<tr><td>
<p>Es freut uns Ihnen mitzuteilen, dass Ihr webmail <%= role %> -Konto erfolgreich von <%= creator_name %> der Firma <%= creator_company %> erstellt wurde. </p>
<p>Um auf webmail zugreifen zu können, bestätigen Sie bitte Ihr Konto mittels untenstehendem Button und legen anschliessend Ihr persönliches Passwort fest, um das Konto zu aktivieren.</p>
</td></tr>
<tr>
<td align="left" style="padding:0;Margin:0"> <%= link_to("Konto bestätigen", confirmation_url(@resource, confirmation_token: @token), class: "es-button es-button-1", style: "mso-style-priority:100 !important;text-decoration:none;-webkit-text-size-adjust:none;-ms-text-size-adjust:none;mso-line-height-rule:exactly;color:#FFFFFF;font-size:16px;border-style:solid;border-color:#0e8799;border-width:10px 25px;display:inline-block;background:#0e8799;border-radius:8px;font-family:roboto, 'helvetica neue', helvetica, arial, sans-serif;font-weight:normal;font-style:normal;line-height:19px;width:auto;text-align:center") %> </td>
</tr>
<tr><td>
<p>Sobald Sie Ihr Konto erfolgreich aktiviert haben, können Sie sich mit Ihrer E-Mail Adresse und Ihrem Passwort bei webmail anmelden und direkt loslegen.</p>
</td></tr>
<% elsif @resource.role == "sub_employer" %>
<tr><td><p><%= salutation %> <%= email_name %>,</p></td></tr>
<tr><td>
<p>Es freut uns Ihnen mitzuteilen, dass Ihr webmail <%= role %> -Konto erfolgreich von <%= creator_name %> der Firma <%= creator_company %> erstellt wurde. </p>
<p>Um auf webmail zugreifen zu können, bestätigen Sie bitte Ihr Konto mittels untenstehendem Button und legen anschliessend Ihr persönliches Passwort fest, um das Konto zu aktivieren.</p>
</td></tr>
<tr>
<td align="left" style="padding:0;Margin:0"> <%= link_to("Konto bestätigen", confirmation_url(@resource, confirmation_token: @token), class: "es-button es-button-1", style: "mso-style-priority:100 !important;text-decoration:none;-webkit-text-size-adjust:none;-ms-text-size-adjust:none;mso-line-height-rule:exactly;color:#FFFFFF;font-size:16px;border-style:solid;border-color:#0e8799;border-width:10px 25px;display:inline-block;background:#0e8799;border-radius:8px;font-family:roboto, 'helvetica neue', helvetica, arial, sans-serif;font-weight:normal;font-style:normal;line-height:19px;width:auto;text-align:center") %> </td>
</tr>
<tr><td>
<p>Sobald Sie Ihr Konto erfolgreich aktiviert haben, können Sie sich mit Ihrer E-Mail Adresse und Ihrem Passwort bei webmail anmelden und direkt loslegen.</p>
</td></tr>
<% elsif @resource.role == "sub_end_client" %>
<tr><td><p><%= salutation %> <%= email_name %>,</p></td></tr>
<tr><td>
<p>Es freut uns Ihnen mitzuteilen, dass Ihr webmail <%= role %> -Konto erfolgreich von <%= creator_name %> der Firma <%= creator_company %> erstellt wurde. </p>
<p>Um auf webmail zugreifen zu können, bestätigen Sie bitte Ihr Konto mittels untenstehendem Button und legen anschliessend Ihr persönliches Passwort fest, um das Konto zu aktivieren.</p>
</td></tr>
<tr>
<td align="left" style="padding:0;Margin:0"> <%= link_to("Konto bestätigen", confirmation_url(@resource, confirmation_token: @token), class: "es-button es-button-1", style: "mso-style-priority:100 !important;text-decoration:none;-webkit-text-size-adjust:none;-ms-text-size-adjust:none;mso-line-height-rule:exactly;color:#FFFFFF;font-size:16px;border-style:solid;border-color:#0e8799;border-width:10px 25px;display:inline-block;background:#0e8799;border-radius:8px;font-family:roboto, 'helvetica neue', helvetica, arial, sans-serif;font-weight:normal;font-style:normal;line-height:19px;width:auto;text-align:center") %> </td>
</tr>
<tr><td>
<p>Sobald Sie Ihr Konto erfolgreich aktiviert haben, können Sie sich mit Ihrer E-Mail Adresse und Ihrem Passwort bei webmail anmelden und direkt loslegen.</p>
</td></tr>
<% else %>
<tr><td><p><%= salutation %> <%= email_name %>,</p></td></tr>
<tr><td>
<p>Es freut uns Ihnen mitzuteilen, dass Ihr webmail <%= role %> -Konto erfolgreich von <%= creator_name %> der Firma <%= creator_company %> erstellt wurde. </p>
<p>Um auf webmail zugreifen zu können, bestätigen Sie bitte Ihr Konto mittels untenstehendem Button und legen anschliessend Ihr persönliches Passwort fest, um das Konto zu aktivieren.</p>
</td></tr>
<tr>
<td align="left" style="padding:0;Margin:0"> <%= link_to("Konto bestätigen", confirmation_url(@resource, confirmation_token: @token), class: "es-button es-button-1", style: "mso-style-priority:100 !important;text-decoration:none;-webkit-text-size-adjust:none;-ms-text-size-adjust:none;mso-line-height-rule:exactly;color:#FFFFFF;font-size:16px;border-style:solid;border-color:#0e8799;border-width:10px 25px;display:inline-block;background:#0e8799;border-radius:8px;font-family:roboto, 'helvetica neue', helvetica, arial, sans-serif;font-weight:normal;font-style:normal;line-height:19px;width:auto;text-align:center") %> </td>
</tr>
<tr><td>
<p>Sobald Sie Ihr Konto erfolgreich aktiviert haben, können Sie sich mit Ihrer E-Mail Adresse und Ihrem Passwort im Web wie auch in der Mobile App anmelden und direkt loslegen.</p>
<p>Die Mobile App können Sie einfach und bequem Ihrem mobilen Endgerät entsprechend
unter den nachfolgenden Links herunterladen:</p>
<p>Für iOS: <a href="https://apps.apple.com/ch/app/webmail/id1557907123">https://apps.apple.com/ch/app/webmail/id1557907123</a></p>
<p>Für Android: <a href="https://play.google.com/store/apps/details?id=com.webmail.ag">https://play.google.com/store/apps/details?id=com.webmail.ag</a></p>
</td></tr>
<% end %>
<% end %>
</table>
<table width="100%" cellspacing="0" cellpadding="0" style="mso-table-lspace:0pt;mso-table-rspace:0pt;border-collapse:collapse;border-spacing:0px;margin-top:25px">
<tr>
<td valign="top" align="center" style="padding:0;Margin:0;width:570px">
<table width="100%" cellspacing="0" cellpadding="0" role="presentation" style="mso-table-lspace:0pt;mso-table-rspace:0pt;border-collapse:collapse;border-spacing:0px">
<tr>
<% if @resource.english? %>
<td align="left" style="padding:0;Margin:0"><p style="Margin:0;-webkit-text-size-adjust:none;-ms-text-size-adjust:none;mso-line-height-rule:exactly;font-family:roboto, 'helvetica neue', helvetica, arial, sans-serif;line-height:24px;color:#333333;font-size:16px">Kindest regards,</p><p style="Margin:0;-webkit-text-size-adjust:none;-ms-text-size-adjust:none;mso-line-height-rule:exactly;font-family:roboto, 'helvetica neue', helvetica, arial, sans-serif;line-height:24px;color:#333333;font-size:16px">Your webmail Team</p></td>
<% else %>
<td align="left" style="padding:0;Margin:0"><p style="Margin:0;-webkit-text-size-adjust:none;-ms-text-size-adjust:none;mso-line-height-rule:exactly;font-family:roboto, 'helvetica neue', helvetica, arial, sans-serif;line-height:24px;color:#333333;font-size:16px">Freundliche Grüsse</p><p style="Margin:0;-webkit-text-size-adjust:none;-ms-text-size-adjust:none;mso-line-height-rule:exactly;font-family:roboto, 'helvetica neue', helvetica, arial, sans-serif;line-height:24px;color:#333333;font-size:16px">Ihr webmail Team</p></td>
<% end %>
</tr>
</table></td>
</tr>
</table>
</table>
</td>
</tr>
</table></td>
</tr>
</table></td>
</tr>
</table>
<table class="es-footer" cellspacing="0" cellpadding="0" align="center" style="mso-table-lspace:0pt;mso-table-rspace:0pt;border-collapse:collapse;border-spacing:0px;table-layout:fixed !important;width:100%;background-color:transparent;background-repeat:repeat;background-position:center top">
<tr>
<td align="center" style="padding:0;Margin:0">
<table class="es-footer-body" cellspacing="0" cellpadding="0" bgcolor="#ffffff" align="center" style="mso-table-lspace:0pt;mso-table-rspace:0pt;border-collapse:collapse;border-spacing:0px;background-color:#FFFFFF;width:650px">
<tr>
<td class="es-m-p20r es-m-p20l" align="left" style="Margin:0;padding-top:30px;padding-bottom:40px;padding-left:40px;padding-right:40px">
</td>
</tr>
<tr>
<td style="Margin:0;padding-left:20px;padding-right:20px;padding-bottom:25px;padding-top:30px;background-color:#20202a" bgcolor="#20202A" align="left">
<table width="100%" cellspacing="0" cellpadding="0" style="mso-table-lspace:0pt;mso-table-rspace:0pt;border-collapse:collapse;border-spacing:0px">
<tr>
<td valign="top" align="center" style="padding:0;Margin:0;width:610px">
<table width="100%" cellspacing="0" cellpadding="0" role="presentation" style="mso-table-lspace:0pt;mso-table-rspace:0pt;border-collapse:collapse;border-spacing:0px">
<tr>
<td style="padding:0;Margin:0;padding-top:20px;padding-bottom:30px;font-size:0" align="center">
<table class="es-table-not-adapt es-social" cellspacing="0" cellpadding="0" role="presentation" style="mso-table-lspace:0pt;mso-table-rspace:0pt;border-collapse:collapse;border-spacing:0px">
<tr>
<td valign="top" align="center" style="padding:0;Margin:0;padding-right:20px"><a href="https://www.facebook.com/webmail-103395514882078/"><img title="Facebook" src="https://lvddhx.stripocdn.email/content/assets/img/social-icons/logo-gray/facebook-logo-gray.png" alt="Fb" width="32" height="32" style="display:block;border:0;outline:none;text-decoration:none;-ms-interpolation-mode:bicubic"></a></td>
<td valign="top" align="center" style="padding:0;Margin:0;padding-right:20px"><a href="https://twitter.com/webmail"><img title="Twitter" src="https://lvddhx.stripocdn.email/content/assets/img/social-icons/logo-gray/twitter-logo-gray.png" alt="Tw" width="32" height="32" style="display:block;border:0;outline:none;text-decoration:none;-ms-interpolation-mode:bicubic"></a></td>
<td valign="top" align="center" style="padding:0;Margin:0;padding-right:20px"><a href="https://www.instagram.com/webmail/"><img title="Instagram" src="https://lvddhx.stripocdn.email/content/assets/img/social-icons/logo-gray/instagram-logo-gray.png" alt="Inst" width="32" height="32" style="display:block;border:0;outline:none;text-decoration:none;-ms-interpolation-mode:bicubic"></a></td>
<td valign="top" align="center" style="padding:0;Margin:0"><a href="https://www.youtube.com"><img title="Youtube" src="https://lvddhx.stripocdn.email/content/assets/img/social-icons/logo-gray/youtube-logo-gray.png" alt="Yt" width="32" height="32" style="display:block;border:0;outline:none;text-decoration:none;-ms-interpolation-mode:bicubic"></a></td>
</tr>
</table></td>
</tr>
<tr>
<td class="es-m-p10r es-m-p10l" align="center" style="padding:0;Margin:0;padding-top:20px;padding-left:40px;padding-right:40px"><p style="Margin:0;-webkit-text-size-adjust:none;-ms-text-size-adjust:none;mso-line-height-rule:exactly;font-family:roboto, 'helvetica neue', helvetica, arial, sans-serif;line-height:18px;color:#ffffff;font-size:12px"><%= t('mail.footer.help') %><br></p></td>
</tr>
</table></td>
</tr>
</table></td>
</tr>
</table></td>
</tr>
</table></td>
</tr>
</table>
</div>
</body>
</html>
我的问题是为什么我在 gmail 主题中收到这个连字符 （-）？
如何解决这个问题？
答：
2赞
HTeuMeuLeu
1/12/2023
#1
该连字符只是 Gmail 用户界面的一部分。它用于分隔主题行和通常称为前标题的内容。Gmail 会根据您可以在您的电子邮件中抓取的第一个 HTML 文本内容自动检测预标头。我的猜测是，您发送 HTML 电子邮件的方式有问题。
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