Editing VPS Management (section)

== Postfix Problems ==

This hasn't happened in a long time, probably no longer valid with modern OS's

Postfix is an alternate MTA - people replace sendmail with it in much the same way that many people also replace sendmail with qmail.  The problem is that if you install postfix inside of a jail, by default it will not work properly - the user will see error messages like this:

incoming mail generates errors like this:

 mail_queue_enter: create file incoming/298266.55902: File too large

and further, sending mail generates errors like this:

 postdrop: warning: mail_queue_enter: create file maildrop/627930.56676: File too large

This is very easy to solve.  In fact, the FreeBSD welcome email that is sent out by `jailmake` now contains this block of text:

- if you plan on installing postfix, email us first and ask for a necessary patch.

So, anytime you see a support email that says anything about postfix not working, paste that line from the welcome email into your response to them, and right away, forward the postfix patch to them in an email.

Here are the instructions:

Simply copy the patch into /usr/ports/mail/postfix/files, rename the file to ‘patch-file_limit.c’ and then cd to /usr/ports/mail/postfix and run `make install`.

The postfix patch is the very first email in the support email box, and we never delete or save it because we always want it there to forward to people.  The instructions in the email are very clear, and it solves their problem 100% of the time.