You could check the mail queue... just in case
https://doc.otrs.com/doc/manual/admin/6.0/en/html/email-settings.html#email-sending-mailqueue

And also there is the 'Communication Log' in the admin menu that might shed more light..


On Sun, 10 May 2020 at 08:18, Santiago DIEZ <santiago@caoba.fr> wrote:
Hi Anthony,

And thank you for your help.

Yes I saw the warning from Google. It's not a problem if an email is not sent at time T. It can be sent at T+1m or T+10m or even T+1h I don't mind. My concern is when the message is not sent at all.

The first email with warning was sent later. Fine. My question is how can I retrieve the second message? Was it sent at some time after the error? Was it completely destroyed (that would be a terrible programming mistake imho)? Is it sitting somewhere waiting for me to push the resend button?

Regards
Santiago


On Sat, May 9, 2020, 17:03 Anthony F McInerney <afm404@gmail.com> wrote:


On Tue, 5 May 2020 at 11:34, Santiago DIEZ <santiago@caoba.fr> wrote:
Hi,

I received 2 alerts in the past 9 days.
I'm using otrs-6.0.28.



subject: OTRS Scheduler Daemon Cron: MailQueueSend

The body starts with:
ERROR: OTRS-otrs.Console.pl-Maint::Email::MailQueue-59 Perl: 5.20.2
OS: linux Time: <DATE>

Then there are many lines of debug. One of them being:
Message: CommunicationLog([...])::Kernel::System::MailQueue   =>
Temporary problem returned from server, requeuing message for sending.
Message: SMTPCode: 451, ErrorMessage: Could not send message to
server: 451,  Go ahead j4sm19123399wrm.85 - gsmtp!

The body finishes with
Error: Could not send message with ID '425'! Please refer to the log.
Error: Failed.

>From the message id (j4sm19123399wrm.85) I could verify that the email
was indeed sent one minute later (found the corresponding article
using grep on /var/article/).
But what does the id 425 refer to?



The second alert has the same subject.

The body also starts with:
ERROR: OTRS-otrs.Console.pl-Maint::Email::MailQueue-59 Perl: 5.20.2
OS: linux Time: <DATE>

Then there are many lines of debug. One of them being:
Message: CommunicationLog([...])::Kernel::System::MailQueue =>
Permanent sending problem or we reached the sending attempt limit.

Here's the problem. Google have a sending limit via smtp (It's like 100 per minute or something you can look it up). Unless you have a business account that allows more.

 
Message will be removed

The body finishes with
Error: Could not send message with ID '520'! Please refer to the log.
Error: Failed.

I can't find the message id a67sm13838135wmc.30 anywhere in my articles.
How can I retrieve the message to try and send it again?



Thanks for your help
Regards
Santiago
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