[Mailman-Users] mailman "user unknown"

Karen R McArthur kmcarthu at bates.edu
Wed Oct 15 21:48:21 CEST 2008

As it turns out, this was not a mailman issue, but a sendmail issue. 
Sendmail is set to look up MTAAliases in our ldap database.  Once I 
changed the order of operations in the sendmail.mc 'AliasFile' directive 
to look at the local aliases.mailman file first before checking the ldap 
database, all worked as I felt it should.

Thank you.

Karen R McArthur wrote:
> I'm placing mailman into production for the first time - and I have 
> approximately 2500 lists.  Many of my lists work fine, but many do not. 
>  On them, I receive a "user unknown" error.  An example: when send to 
> the "seo" list, sendmail -bv seo at lists.bates.edu returns 
> "seo at lists.bates.edu... User unknown"
> I have the seo lines in aliases.mailman - and a strings on the 
> aliases.mailman.db returns correct data for the list.  Some lists listed 
> in aliases.mailman AFTER seo work correctly, as do some lists listed 
> BEFORE it - elimination my idea of a corrupt file.
> aliases.mailman was generated through "sudo -u mailman bin/genaliases -q 
>  > aliases.mailman".
> I have run newaliases.
> I have restarted mailman.
> sendmail.cf includes /etc/aliases.mailman in the ALiasFile line - and is 
> working as it should since some of my lists are working.
> aliases.mailman is 28,896 lines long - is that a problem?
> Any ideas?
> ls -ltr aliases.mailman*
> -rw-r--r--   1 mailman root     1845123 Oct 15 12:37 aliases.mailman
> -rw-r-----   1 root    smmsp    2646016 Oct 15 12:38 aliases.mailman.db
> strings aliases.mailman.db | grep seo
> "|/usr/lib/mailman/mail/mailman bounces seo"
> seo-bounces
> "|/usr/lib/mailman/mail/mailman confirm seo"
> seo-confirm
> "|/usr/lib/mailman/mail/mailman leave seo"
> seo-leave
> "|/usr/lib/mailman/mail/mailman join seo"
> seo-join
> "|/usr/lib/mailman/mail/mailman admin seo"
> seo-admin
> "|/usr/lib/mailman/mail/mailman owner seo"
> seo-owner
> "|/usr/lib/mailman/mail/mailman unsubscribe seo"
> seo-unsubscribe
> "|/usr/lib/mailman/mail/mailman subscribe seo"
> seo-subscribe
> "|/usr/lib/mailman/mail/mailman request seo"
> seo-request
> "|/usr/lib/mailman/mail/mailman post seo"

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