Applicable to:
- Plesk for Linux
Symptoms
-
The mailbox
jane.doe@example.com
is set as mail forwarder forjohn.doe@example.com
in Domains > example.com > Mail Accounts. -
Emails are not being forwarded to the mailbox with the following error in
/var/log/maillog
log file:CONFIG_TEXT: maildrop/39916.2634847: Permission denied postdrop: warning: mail_queue_enter: create file maildrop/40265.2634847
Cause
Incorrect permissions are set for Postfix files.plesk repair fs
command reports the following:
# plesk repair fs -v
Checking Linux system files
There are incorrect permissions on some items:
/usr/lib64/plesk-9.0/sendmail/postdrop ............................ [ERROR]
- Incorrect permissions on
/usr/lib64/plesk-9.0/sendmail/postdrop. Expected: one of 02755.
Actual: 0755.
Resolution
- Log in to Plesk.
- Go to Tools & Settings > Diagnose & Repair.
- Press Change next to the File System field and set the option to Only the System Files
- Press the Check Selected button:
- After any issue is detected, fix permissions by clicking the Repair button:
- Go to Tools & Settings > Services Management and restart the SMTP Server (Postfix) service since there may be some leftover stuck processes remaining:
-
Connect to the server via SSH.
-
Execute the command below to fix all the potential issues with permissions:
# plesk repair fs -y
-
Check if there are any
postdrop
processes:# ps auxffw | grep postdrop
root 2703423 0.0 0.0 9092 676 pts/0 S+ 12:59 0:00 _ grep --color=auto postdrop
popuser 2690196 0.0 0.0 97324 4268 ? S 12:38 0:00 | _ /usr/lib64/plesk-9.0/sendmail/postdrop -r
popuser 2673913 0.0 0.0 97324 4268 ? S 12:03 0:00 _ /usr/lib64/plesk-9.0/sendmail/postdrop -r
popuser 2673914 0.0 0.0 97324 4268 ? S 12:03 0:00 _ /usr/lib64/plesk-9.0/sendmail/postdrop -r
popuser 2674177 0.0 0.0 97324 4272 ? S 12:03 0:00 _ /usr/lib64/plesk-9.0/sendmail/postdrop -r
popuser 2677669 0.0 0.0 97324 4272 ? S 12:11 0:00 _ /usr/lib64/plesk-9.0/sendmail/postdrop -r
popuser 2685525 0.0 0.0 97324 4272 ? S 12:28 0:00 _ /usr/lib64/plesk-9.0/sendmail/postdrop -r
popuser 2687613 0.0 0.0 97324 4272 ? S 12:32 0:00 _ /usr/lib64/plesk-9.0/sendmail/postdrop -r
popuser 2687886 0.0 0.0 97324 4268 ? S 12:33 0:00 _ /usr/lib64/plesk-9.0/sendmail/postdrop -r
popuser 2688674 0.0 0.0 97324 4272 ? S 12:34 0:00 _ /usr/lib64/plesk-9.0/sendmail/postdrop -r -
If they exist, restart postfix:
4.1. Stop Postfix service:# service postfix stop
4.2. Make sure that there are no stuck processes left:
# ps auxffw | grep postdrop
root 2704157 0.0 0.0 9092 680 pts/0 S+ 13:01 0:00 _ grep --color=auto postdrop4.3. If they exist, kill hung processes. If there are none, restart Postfix:
# service postfix start
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