OT : alternative to postfix hold queue as it's used by mailscanner

Mikael Kermorgant mikael.kermorgant at gmail.com
Thu Apr 12 08:55:06 IST 2007

2007/4/11, Gareth <list-mailscanner at linguaphone.com>:
>  Can you elaborate a bit more on exactly what you want to do.
> It sounds like you are currently using mailscanner and postfix in a hold
> queue configuration with imap on the local server?
> You want to move some users one at a time so in order to move the data you
> want to :-
> 1) for a particular user halt mail delivery.
> 2) Sync the mail to the new imap server.
> 3) Configure postfix to deliver to the new imap server for the migrated
> user only.
> 4) Start releasing the users mail.

This is exactly what I intend to do if possible. I'm not a postfix expert
but if I just knew that a solution exist, that would be a starting point.


> I cant see the fact that you are using a hold queue being a problem. Once
> the mail has been requeued back into the normal incoming queue then postfix
> should follow its normal delivery methods including transport maps if you
> have them defined.
> I dont know how you would stop mail for a particular user though. Perhaps
> you can configure a seaprate hold queue and move mails from there to the
> regular hold queue when you want them scanned and released? I dont know if
> this is possible.
> -----Original Message-----
> *From:* mailscanner-bounces at lists.mailscanner.info [mailto:
> mailscanner-bounces at lists.mailscanner.info]*On Behalf Of *Mikael
> Kermorgant
> *Sent:* 11 April 2007 21:01
> *To:* MailScanner discussion
> *Subject:* OT : alternative to postfix hold queue as it's used by
> mailscanner
> Hello,
> I posted this question a week ago on postfix's newsgroup
> alt.comp.mail.postfix but got no answer.  I apologize for being a bit off
> topic but I thought maybe someone would be able to help me on this list as
> my need is a bit related with mailscanner works with postfix.
> Here's what I sent :
> I'm using postfix associated with mailscanner. When a mail arrives,
> postfix puts it in the hold queue, then mailscanner takes it, scans it and
> moves it the incoming queue.
> Now, I'm planning to migrate the imap backend to another, beginning with
> some users (there will be a transport table to handle presence of both imap
> servers).
> I'd like to run this process :
> 1) Put mails for user foo in some hold queue
> 2) use imapsync to transfer imap data to the new backend
> 3) set up a transport table with special mention for user foo
> 4) release mails from the hold queue for user foo
> Mailscanner using postfix's hold queue, I'm affraid I won't be able to use
> it? Do you know an alternative I could use ?
> Thanks in advance,
> --
> Mikael Kermorgant
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Mikael Kermorgant
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