: A full root filesystem can cause Postfix to suspend delivery because it cannot write to its queue or temporary directories. Troubleshooting & Fixes 1. Locate the Root Cause in Logs
But sometimes, the error persists. The email ages in purgatory. The sysadmin runs postqueue -p and sees the same stubborn entries day after day. Eventually, a decision must be made: postsuper -d (deletion, a quiet death) or a forced flush with postqueue -f (one last desperate attempt). : A full root filesystem can cause Postfix
postmap /etc/postfix/transport systemctl restart postfix The email ages in purgatory
Ensure your Postfix configuration is correct. Key files to check are: In that case
: The Postfix service needs specific ownership and read/write permissions for its queue files and lookup tables (like sasl_passwd ) to function.
Sometimes the error remains stubborn. In that case, increase the verbosity of the transport in master.cf .