Postfix 管道别名未运行

问：

我想运行一个脚本，每当有人向我的 ArchLinux 服务器上的特定邮箱发送邮件时，该脚本就会执行。从我所读到的内容来看，我需要 Postfix 和一个文件，所以这就是我安装的。但是，我的脚本没有运行（临时文件没有被创建，请参阅下面的脚本），即使 Postfix 说它已交付给它（请参阅下面的系统日志）。主机名和帐户名称已被编辑，所有评论行也已编辑。我将Microsoft和Gmail列入白名单，这些IP我也保留在这里。alias

我：/etc/postfix/aliases

root: bence98
MAILER-DAEMON:  postmaster
postmaster:     root
# ... a whole bunch of default mappings to `root`
mymbox: |/usr/local/bin/my-script

我：/etc/postfix/main.cf

compatibility_level = 3.8
queue_directory = /var/spool/postfix
command_directory = /usr/bin
daemon_directory = /usr/lib/postfix/bin
data_directory = /var/lib/postfix
mail_owner = postfix
# setting this didn't help either
# scriptaccount is a normal user
default_privs = scriptaccount
# this is my correct public DNS
myhostname = my.public.domain.tld
unknown_local_recipient_reject_code = 550
mynetworks = 127.0.0.0/8 <local subnet> [::1]/128 [fe80::]/64 40.107.0.0/16 209.85.128.0/17
alias_database = $alias_maps

我/etc/postfix/master.cf

smtp      inet  n       -       n       -       -       smtpd
pickup    unix  n       -       n       60      1       pickup
cleanup   unix  n       -       n       -       0       cleanup
qmgr      unix  n       -       n       300     1       qmgr
#qmgr     unix  n       -       n       300     1       oqmgr
tlsmgr    unix  -       -       n       1000?   1       tlsmgr
rewrite   unix  -       -       n       -       -       trivial-rewrite
bounce    unix  -       -       n       -       0       bounce
defer     unix  -       -       n       -       0       bounce
trace     unix  -       -       n       -       0       bounce
verify    unix  -       -       n       -       1       verify
flush     unix  n       -       n       1000?   0       flush
proxymap  unix  -       -       n       -       -       proxymap
proxywrite unix -       -       n       -       1       proxymap
smtp      unix  -       -       n       -       -       smtp
relay     unix  -       -       n       -       -       smtp
showq     unix  n       -       n       -       -       showq
error     unix  -       -       n       -       -       error
retry     unix  -       -       n       -       -       error
discard   unix  -       -       n       -       -       discard
local     unix  -       n       n       -       -       local
virtual   unix  -       n       n       -       -       virtual
lmtp      unix  -       -       n       -       -       lmtp
anvil     unix  -       -       n       -       1       anvil
scache    unix  -       -       n       -       1       scache
postlog   unix-dgram n  -       n       -       1       postlogd

/usr/local/bin/my-script:

#!/bin/sh
echo "Execed as $USER" >/tmp/mail.log
cat >/tmp/incoming.eml

输出到 syslog：

postfix/qmgr[3476413]: 08571843540: from=<[email protected]>, size=7662, nrcpt=1 (queue active)
postfix/local[3476483]: 08571843540: to=<[email protected]>, relay=local, delay=0.06, delays=0.05/0.01/0/0, dsn=2.0.0, status=sent (delivered to command: /usr/local/bin/my-script)
postfix/qmgr[3476413]: 08571843540: removed
postfix/smtpd[3476466]: disconnect from mail-db3eur04on2105.outbound.protection.outlook.com[40.107.6.105] ehlo=1 mail=1 rcpt=1 bdat=1 quit=1 commands=5