[CentOS] [OT] List of all email users

Ralph Angenendt ra+centos at br-online.de
Thu Oct 30 16:26:07 UTC 2008

Jussi Hirvi wrote:
> Ralph Angenendt (ra+centos at br-online.de) kirjoitteli (30.10.2008 17:12):
>> for i in /etc/aliases /etc/postfix/virtual; do
>> cat $i | grep -Ev "(^#|^\s+$|^$)" | sed -e "s/://" | awk '{print $1}' | \
>> sort -u | tr \\n ,
>> done
> Thanks, that looks neat, and works.
> For real-world use, I guess the source files (in my case aliases,
> virtusertable) should be prepared first - the list will include unwanted
> users like "bin" or "mysql", mailing list name defined in virtusertable, and
> possibly other strange things too.

And (I forgot to say that) - it weeds out users with a ":" in their mail
address, which is completely valid. So you should check that also.


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