Re: MX/ISP BLOCK

Charles Cazabon <[email protected]> Fri, 8 Feb 2019 16:10:46 -0600
Newsgroups gmane.mail.qmail.general
Message-ID <[email protected]>
Rejaine Silveira Monteiro <[email protected]> wrote:
> This ISP is off the air and hundreds of messages from multiple clients
> are standing in line. The problem is that this is generating a huge
> delay in delivering to other customers of other ISPs.

Others have made suggestions on how to cause these messages to be delivered to
another machine or bounced, however...

qmail is pretty good about handling cases like this.  Normally, each message
will be tried on the usual delivery schedule, which uses a scaling
(geometric?) backoff algorithm, so messages that have been sitting in the
queue waiting for this ISP to come back shouldn't actually interfere with
delivery of newer messages to responsive hosts.

Are you certain you actually have a problem, or are you just worrying when you
needn't?

Charles
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