[Mailman-Users] Mailman and fault tolerance

[Brad Knowles]

At 9:25 PM -0500 6/21/06, Antonio Dragone wrote:

>  Today in the morning I started the server again and I found about 400
>  e-mails in the sendmail queue.

	Right, but how many messages had sendmail already delivered by 
that point?  Did you check the logs?

>  Is there some way to know if mailman could send the rest of letters
>  (about 11.000 email addresses)?

	Sure.

>  I know by experience that Mailman doesn't deliver the 11k emails at
>  once but in groups of 50 addresses (more or less depending of server
>  response).

	Which isn't an issue.

>  Has mailman some kind of fault tolerance to resume an incomplete job?

	Sure.  Mailman puts all outgoing messages into it's own outgoing 
queue, before it delivers those messages to the MTA.  So, anything 
that has not yet been delivered to the MTA should still be in the 
outgoing queue from Mailman.  When Mailman restarts, those old 
messages sitting in the queue should be flushed out to the MTA.

	You should already be covered.  Just check your logs to see what 
messages (and how many) were delivered by Mailman to the MTA, and how 
many of those messages the MTA had already delivered.  I suspect you 
will be pleasantly surprised.

-- 
Brad Knowles, <brad at stop.mail-abuse.org>

"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety."

     -- Benjamin Franklin (1706-1790), reply of the Pennsylvania
     Assembly to the Governor, November 11, 1755

  LOPSA member since December 2005.  See <http://www.lopsa.org/>.