Re: logrotate script for Postfix

[sashk]

%M - minute

%m - month.

 

you have a typo, should be:

 

maillog_file_rotate_suffix = %Y%m%d-%H%M%S
 

09.05.2020, 11:32, "Larry Stone" <lston...@stonejongleux.com>:

 On May 9, 2020, at 9:45 AM, Wietse Venema <wie...@porcupine.org> wrote:


 If the log is written by Postfix you must use "postfix logrotate".
 This ensures that Postfix stops writing to a file before it is
 compressed.

         Wietse

I hate to even suggest I found a bug with Postfix, but I think I found a very minor bug.

First, despite having gone to Postfix logging over a year ago (thanks to MacOS’s weird logging system), this is the first I heard there was a Postfix logrotate command. Testing it, I did not get the rotated file name I would have expected. The bug is the default name for the rotated file which is from the parameter maillog_file_rotate_suffix:
# postconf -d maillog_file_rotate_suffix
maillog_file_rotate_suffix = %Y%M%d-%H%M%S

This is putting minutes where month should be. And it’s documented that way at http://www.postfix.org/MAILLOG_README.html (so technically not a bug since it works as documented but not as one would expect).

Easy fix with an override in main.cf

--
Larry Stone
lston...@stonejongleux.com