I've seen this explanation before, too; but I don't buy it. Has anyone been
able to confirm that this is a real problem or is it a myth??? I have run
my 4000 member list a couple of times on my lowly P-120 and it takes a few
hours for all the messages to go out (it is sorted by domain). sendmail
queue is set to 30 minutes and I didn't experience this problem.
However, I did end up with duplicates!! I found that the message was
actually being redirected back to my server from a member of the list. The
problem was NOT with sendmail. The message came back to my server
appearing to have been posted directly to list by the original poster. A
dump of the message was byte-for-byte the same as original, except for a
few extra headers that identified its path to recipient and back. These
duplicates got through a second time because I didn't install any loop
checking.
I still haven't installed the loop-check. I change listname.post to be
invalid address until user wants to send his bulkmail. To send to list, I
fix this file, have user submit message and the after message is posted, I
immediately disable list again.
I haven't tried this, but I'm sure this would reproduce the problem.
Create a list with one member testdup@yourdomain.com - also add an entry to
your /etc/mail/virtualusertable that redirects email for this user back to
your mailing list (basically an alias for your mailing list). Send a
message to your list and you should have a loop.
Frank
At 05:29 PM 8/16/01 +0200, Georg Zumstrull wrote:
>Maybe your own new script will have the same "bug" if it is based on
>sendmail. As far as I remember this problem has been discussed several times
>on this list. It is because sendmail is not ready with delivery before the
>next queue run. There are several options how to avoid this problem:
>
> - Sort the list for quicker delivery
>
> - Run the queue less often
>
> - Use an other program for delivery like bulkmailer
>
>Hope I didn't remember wrong things.
>
>Georg Zumstrull
>
>> -----Original Message-----
>> From: majordomo-users-owner@GreatCircle.COM
>> [mailto:majordomo-users-owner@GreatCircle.COM]On Behalf Of Prasit P
>> Sent: Wednesday, August 15, 2001 3:34 PM
>> To: Majordomo-Users@GreatCircle.COM
>> Subject: duplicate email sent...
>>
>>
>> I'm damn upset with Majordomo. I configured and have been
>> testing the system for 2 weeks without any problems.
>>
>> When I started to send mail to my real mailing list with
>> 10,000 of email addresses. It sent out 10 copies to my
>> subscribers and they're really mad at my organization...
>>
>> what's happen to this application? I use RedHat 6.2,
>> sendmail 8.12, and the latest Majordomo, which shouldn't be
>> any problems with whatsoever listed in the FAQs.
>>
>>
>> I'm damn maddddd... everybody, my executive manager are
>> blaming me now...
>>
>> Well, I decided to write my own mailing list script which
>> shouldn't take me more than 2 days....
>>
>>
>>
>>
>>
>>
>> =====
>> GROWTH - The rung of a ladder was never meant to rest upon,
>> but only to hold your foot long enough to put the
>> other foot higher.
>>
>> -anonymous
>>
>> __________________________________________________
>> Do You Yahoo!?
>> Make international calls for as low as $.04/minute with Yahoo! Messenger
>> http://phonecard.yahoo.com/
>
>
>
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