exim-fetchmail-qmail->duplicate mail

flexcom

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Sep 6, 2005
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LS,

Problem: our clients receive duplicate email. If we send an email with 2 users in the 'To:'-field, eg [email protected];[email protected], the mail gets delivered to both users 2 times.

Our layout: the MX-record of the domain is our DA-server. Some mail gets delivered into private POP-boxes, (e.g. [email protected]) and the rest of it via a catchall into one POP3-box [email protected]. On the clients server, fetchmail collects the email from [email protected] and redistributes it via qmail.
We cannot change the MX-record to the client's ip, because we'd like to have those private POP3-boxes, plus we'd like to use DA's antiSPAM.

What happens is this: DA receives an email with x users of mydomain.com in the To-field. Hence, it distributes x mails into the catchall POP-box. Fetchmail collects x mails, and passes it to qmail, which in turn distributes the mail again x times, which results in x same emails per user.

Is there any solution to this? I know about qmail's 'delivered-to' feature, but don't know how to fix this in DA.

Help is much appreciated!


Lieuwe Jan Koning
 
The qmail exploder has to be getting the delivery email addresses from somewhere, since the envelope email addresses are all gone by the time the email is getting into the catchall mailbox.

So the question is where does the qmail exploder get those email addresses from?

Jeff
 
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