Symptoms
Mail forwarding fails, error in
/var/log/maillogÂ
plesk postfix/smtp[8055]: AABBCCDD11: to=<[email protected]>, relay=<relay_host_hostname>[203.0.113.2]:587, delay=0.16, delays=0.02/0.02/0.08/0.03, dsn=5.0.0, status=bounced (host <relay_host_hostname>[203.0.113.2] said: 550-Verification failed for <SRS0[email protected]> 550-Previous (cached) callout verification failure 550 Invalid sender <[email protected]> (in reply to MAIL FROM command)
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Cause
Sender Rewriting Scheme (SRS) support is enabled and it is not supported on relay host.
Resolution
Enable acceptance of SRS emails from Plesk on the relay host.
OR:
Disable SRS support using the following steps:
- Connect to Plesk server using SSH.
- Open the
file and find the following line:
/etc/postfix/master.cf
plesk_virtual unix - n n - - pipe flags=DORhu user=popuser:popuser argv=/usr/lib64/plesk-9.0/postfix-local -f ${sender} -d ${recipient} -p /var/qmail/mailnames
- Add
to the end of the line:
-s
plesk_virtual unix - n n - - pipe flags=DORhu user=popuser:popuser argv=/usr/lib64/plesk-9.0/postfix-local -f ${sender} -d ${recipient} -p /var/qmail/mailnames -s
- Restart the
service:
postfix
# service postfix restart