Triplicate emails sent?

[Terry Allen]

>Howdy All,
>
>I am using MacOSX Server 10.4.x as our mail server.  We use IMAP and 
>Mail.app as the client.
>
>I think something may be wrong with the mail server set-up because
>
>1. A colleague has just indicated that he get each of my emails 
>three (3) times.  Which is strange because when I send them to 
>myself on another email system I don't get triplicates and other 
>people have not said anything about this to me (although they may 
>just be ignoring it or thinking I am pushy ;-)
>
>This colleague runs Windows and uses a third-party company (not an 
>ISP) as their mail/domain server.
>
>2. I get an automated bound message warning email every day from a 
>mailing list I am on (but it says if I get the message it probably 
>means the mail system is fixed).  I have registered with my .Mac 
>email address but that is forwarded to my normal email address on my 
>mail server.
>
>I only get this bounce for one mailing list (Frontbase) although I 
>am on many more.
>
>Howver, I also sometimes receive duplicate messages from some of the 
>mailing lists I am subscribed to (particularly some of the Omnigroup 
>one's Macosx-talk I think, but also another Australian mailing list).
>
>I should also point out that my mail server does not have a proper 
>reverse DNS entry for the domains that I post/receive from (neither 
>is correct) since I don't have control over that.  I am not sure if 
>that would be causing the problem but I wonder if it will make some 
>system label my email as spam?
>
>Any help or suggestions would be most appreciated.
>
Hi again,
	With regards to point 1, if the Windows user is running 
Outlook, or Outlook Express, numerous clients who use that mail 
client have this issue. I doubt the problem is actually yours. You 
may well find that the settings on the particular account on their 
machine, are set to leave mail on server. When they next go to 
download mail, they will download another copy from the server & so 
on...
	Se if they can change the settings to remove the mail from 
the server after download & that may well fix the issue.
	As for the mail-list, I would check with the bounce message 
to see exactly what the headers & body are saying.
-- 

	Bye for now, Terry Allen 
	___________________________________________________________________
hEARd

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