Mail server migration and HOLDing mail at Mailscanner

[Simon]

As a follow up to this one.. my dbmail transport is called dbmail-lmtp, so
adding this to postfix's main.cf:

defer_transports = dbmail-lmtp

Simply set all inbound mail to that transport to the defer queue. Once our
dbmail server comes back online and is available for delivery, i can
uncomment, reload postix and flush the queue.

Simon

On Tue, Mar 8, 2016 at 8:09 PM, Simon <greminn at gmail.com> wrote:

> Thanks for the replies, the problem with shutting down all mail is that
> will also stop mail to our dovecot Mail platform, which is not going to be
> offline for any migration... So 90% of clients will not receive mail so
> that I can clean up the dbmail server (that has 10% of clients on it).
>
> A fun tip, the dbmail server uses innodb... I have one table which is
> 650GB.
>
> Its going to take about 2 hours to migrate the DB over to new MySQL
> server, after which the table is 70GB. I was just concerned about mail
> bouncing during that time because it could not deliver to the dbmail
> server. I might check out postfix retry time..
>
>
> On Tuesday, 8 March 2016, Jerry Benton <jerry.benton at mailborder.com>
> wrote:
>
>> If you shut down MailScanner and Postfix, obviously no email will be
>> processed. You can also shut down MailScanner and make sure Postfix is
>> started and it will accept the email and hold it in /var/spool/postfix/hold
>> until you start MailScanner again.
>>
>> -
>> Jerry Benton
>> www.mailborder.com
>>
>>
>>
>> On Mar 7, 2016, at 8:41 PM, Simon Buchanan <greminn at gmail.com> wrote:
>>
>> Hi There,
>>
>> We have Mailscanner/postfix setup on centos and working well. It delivers
>> mail to two seperate mail servers (dovecot and dbmail) depending on the
>> domain (most clients are on our new dovecot platform, a few are on our old
>> dbmail platform).
>>
>> dovecot is delivered via smtp:xxx.xxx.xxx.xxx
>> dbmail is delivered via a dbmail-lmtp
>> service: dbmail-lmtp:xxx.xxx.xxx.xxx:24
>>
>> We are about to perform a lengthy migration of the dbmail server, and
>> need to simply stop Mailscanner processing mail for dbmail  until we are
>> back up and running again. Is there anyway todo this, or is this a postfix
>> question?
>>
>> Thanks!
>>
>> Simon
>>
>>
>>
>> --
>> MailScanner mailing list
>> mailscanner at lists.mailscanner.info
>> http://lists.mailscanner.info/listinfo/mailscanner
>>
>>
>>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mailscanner.info/pipermail/mailscanner/attachments/20160308/4dc01c7f/attachment.html>