[Labs-l] Fwd: Mail delivery failed: returning message to sender

Tue Nov 1 20:35:03 UTC 2016

Thanks a lot! Do you want the headers?

Martin

Dne út 1. lis 2016 21:29 uživatel Merlijn van Deen (valhallasw) <
valhallasw at arctus.nl> napsal:

> On 30 October 2016 at 00:16, Martin Urbanec <martin.urbanec at wikimedia.cz>
> wrote:
>
> I receive mails like this one now. Why? This always worked correctly.
>
>
> Hard to say, but:
>
>  ---------- Forwarded message ---------
>
> Date: so 29. říj 2016 3:00
>
> ...
>
>
> Date: Sat, 20 Aug 2016 00:00:29 +0000
>
>
> suggests this is a message that has been queued up for a while (to say the
> least). Looking at the headers, the Received: header from tools-mail is
> missing, which suggests that this email was stuck on tools-cron-01. This is
> what I think happened:
>
>  - On August 20, there was some sort of outage, where tools-cron-01 could
> not deliver emails. After retrying delivery, tools-cron-01 gives up, and
> tries to send a 'failed' email
>  - The 'failed' email can also not be delivered. This email ends up in an
> error queue and stays there
>  - Last week, the box was rebooted, and a large number of these failure
> emails get sent out.
>
> I'm not 100% certain about this (your email did not include the headers of
> the Mail Delivery System email), but in any case, mail from tools-cron-01
> seems to be currently functional.
>
> Merlijn
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