Re: Duplicate messages

On Tue, 30 Jun 2009 15:16:05 +0100
"Clare Redstone" <[email protected]> wrote:

> Our mailing list has recently started sending all messages in duplicate. How
> do I find out what is happening and stop it? I haven't changed anything on
> the list myself. I don't know if the our web host has changed something that
> has caused this.

This happened to me for a while with the standard majordomo installation.
What was going on was that the emails were grouped together so that multiple
addresses would be attached to a single email and if one of them were 
undeliverable for some reason (like a mailhost somewhere being down), my
mail server would later try to re-deliver the message to the whole set
of addresses in the message, meaning most people would get multiple 
deliveries.

I use a program called bulk_mailer to break out the messages so there's a
separate one for each domain being delivered to.  Let me know if you need
a pointer to it, but it should be easy to google.

-- 
======================================================================
       Joe Hartley - UNIX/network Consultant - [email protected]
 Without deviation from the norm, "progress" is not possible. - FZappa