Postfix: User unknown in local recipient table

[swanny]

/usr/local/mailman/data/aliases does not exist. This is probably annoying for you--I'm pretty new to unix, and even newer to postfix.

If I copy /etc/aliases to /usr/local/mailman/data/aliases, do you think it will work? In fact, I'll try it and let you know. I'll give the mail server a few minutes to run it through.

[jledhead]

This is probably annoying for you--I'm pretty new to unix, and even newer to postfix.

I wasn't always knowledgeable of linux or postfix

If I copy /etc/aliases to /usr/local/mailman/data/aliases, do you think it will work? In fact, I'll try it and let you know. I'll give the mail server a few minutes to run it through.

or you could just remove that part from main.cf and restart postfix.
change this line

alias_maps = hash:/etc/aliases, hash:/usr/local/mailman/data/aliases

to this

alias_maps = hash:/etc/aliases

for postfix (or email in general) its very helpful to learn how to send email using telnet, so you can troubleshoot quicker
telnet email - Google Search