If I specify a relayhost in main.cf, in what path (by default) does postfix store that message before and during the process of relaying it on to the next server? And is there a parameter that allows that path (or paths) to be customized?
2 Answers
Postfix will store mails waiting to be sent in the queue_directory
.
See postconf
for the current value.
I am guessing it is /var/spool/mail/$USER somewhere.