Mailing List Archive: Fwd: Can I tell exim to accept messages and queue them rather than send them on?

Fwd: Can I tell exim to accept messages and queue them rather than send them on?

Feb 9, 2024, 1:58 PM

Post #1 of 4 (78 views)

Hi, folks,

The man page wasn't helpful for this.

I'm going to be replacing our mail nodes over the next few weeks and
I've been sequencing events in the move. It would be very handy if it were
possible to tell one of my nodes to keep accepting mail but to stop trying
to deliver it. Can this be done? If so, how? I suspect the answer is no,
but I'll gladly be told otherwise.

Thanks,

John A

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Re: Fwd: Can I tell exim to accept messages and queue them rather than send them on? [ In reply to ]

exim-users at lists

Feb 9, 2024, 2:39 PM

Post #2 of 4 (78 views)

Permalink

> The man page wasn't helpful for this.
>
> I'm going to be replacing our mail nodes over the next few weeks and
> I've been sequencing events in the move. It would be very handy if it were
> possible to tell one of my nodes to keep accepting mail but to stop trying
> to deliver it. Can this be done? If so, how? I suspect the answer is no,
> but I'll gladly be told otherwise.

This is entirely possible. You want a router that acts very early on and
looks something like this:

defer_user:
driver = redirect
allow_defer
data = :defer:delivery temporarily stalled
no_verify
no_expn
condition = ${if match_address{$local_part@$domain}{/etc/exim4/exim-addr-defer}}

Then at the appropriate time, add '*@*' to /etc/exim4/exim-addr-defer
and enjoy absolutely everything being stalled. Because this router is
set to no_verify, it will not stop a RCPT TO address being verified and
thus accepted. (Or even a MAIL FROM address.)

- cks

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Re: Fwd: Can I tell exim to accept messages and queue them rather than send them on? [ In reply to ]

exim-users at lists

Feb 9, 2024, 9:58 PM

Post #3 of 4 (78 views)

Permalink

On 2024-02-09 Johnnie W Adams via Exim-users <exim-users@lists.exim.org> wrote:
> Hi, folks,

> The man page wasn't helpful for this.

Good Morning,

take a look at the full documentation (spec.(txt|pdf|html) instead and
find ...

> I'm going to be replacing our mail nodes over the next few weeks and
> I've been sequencing events in the move. It would be very handy if it were
> possible to tell one of my nodes to keep accepting mail but to stop trying
> to deliver it. Can this be done? If so, how? I suspect the answer is no,
> but I'll gladly be told otherwise.

... queue_only and queue_only_file.

cu Andreas

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Re: Fwd: Can I tell exim to accept messages and queue them rather than send them on? [ In reply to ]

exim-users at lists

Feb 10, 2024, 3:00 AM

Post #4 of 4 (78 views)

Permalink

On 10/02/2024 05:58, Andreas Metzler via Exim-users wrote:
>> I'm going to be replacing our mail nodes over the next few weeks and
>> I've been sequencing events in the move. It would be very handy if it were
>> possible to tell one of my nodes to keep accepting mail but to stop trying
>> to deliver it. Can this be done? If so, how? I suspect the answer is no,
>> but I'll gladly be told otherwise.
>
> ... queue_only and queue_only_file.

You'd have to also stop your queue-runners (probably, modify the daemon
startup cmdline to lose the "-q5m" or similar).

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Cheers,
Jeremy

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