[SOLVED] Messages missing a valid messageId header are not\n5.7.1 accepted.

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poweredge
Posts: 133
Joined: Sat May 29, 2021 11:16 am

[SOLVED] Messages missing a valid messageId header are not\n5.7.1 accepted.

Post by poweredge » Fri Aug 05, 2022 5:30 am

I've created a Group alias which forward email to various local users. However when user replied to the original sender with Outlook, their message got rejected by Gmail and received message with error " Other mail system problem 550-'5.7.1 [219.76.94.38] Messages missing a valid messageId header are not\n5.7.1 accepted"

May I know what's causing the problem? Some says SPF required in order to prevent this? Many thanks in advance.

Final-Recipient: rfc822;username@gmail.com
Action: failed
Status: 5.0.0 (permanent failure)
Diagnostic-Code: smtp; 5.3.0 - Other mail system problem 550-'5.7.1 [x.x.x.x] Messages missing a valid messageId header are not\n5.7.1 accepted. l12-20020a056a0016cc00b00528a44b7df7si3062567pfc.189 - gsmtp' (delivery attempts: 0)
Last edited by poweredge on Fri Aug 19, 2022 9:15 am, edited 2 times in total.

poweredge
Posts: 133
Joined: Sat May 29, 2021 11:16 am

Re: Messages missing a valid messageId header are not\n5.7.1 accepted.

Post by poweredge » Fri Aug 05, 2022 5:32 am

Is there a way to force adding a Message-ID Header to all emails send to Gmail?

zupperman74
Posts: 1
Joined: Sat Aug 06, 2022 11:48 am

Re: Messages missing a valid messageId header are not\n5.7.1 accepted.

Post by zupperman74 » Sat Aug 06, 2022 11:49 am

I have the same problem since few days.
the strange thing is that I see a messageID on the emails so I don't understand what's wrong...

poweredge
Posts: 133
Joined: Sat May 29, 2021 11:16 am

Re: Messages missing a valid messageId header are not\n5.7.1 accepted.

Post by poweredge » Wed Aug 10, 2022 7:43 am

Still return with the same error Messages missing a valid messageId header are not\n5.7.1 accepted.

Any hints?

MailEnable-Ian
Site Admin
Posts: 9721
Joined: Mon Mar 22, 2004 4:44 am
Location: Melbourne, Victoria, Australia

Re: Messages missing a valid messageId header are not\n5.7.1 accepted.

Post by MailEnable-Ian » Thu Aug 11, 2022 12:28 am

Hi,

Within the SMTP properties under the "Advanced SMTP" tab do you have the option for "Add required headers for authenticated senders if needed" enabled? Please see: https://www.mailenable.com/documentation/10.0/Enterprise/Advanced%20SMTP.html
Regards,

Ian Margarone
MailEnable Support

poweredge
Posts: 133
Joined: Sat May 29, 2021 11:16 am

Re: Messages missing a valid messageId header are not\n5.7.1 accepted.

Post by poweredge » Thu Aug 11, 2022 4:39 am

Thanks Ian for the tips.

Btw, the user who's replying email to Gmail is using third party broadband provider's SMTP, instead going through their own SMTP.

Therefore, I can confirm this may not be the solution.

Instead, I strongly suspect SPF plays a major part in Gmail's acceptance as one of the domain has SPF without any problem, but the one without has the above problem.

I would add SPF to see if this solve the problem and shall get back soon.

poweredge
Posts: 133
Joined: Sat May 29, 2021 11:16 am

Re: Messages missing a valid messageId header are not\n5.7.1 accepted.

Post by poweredge » Fri Aug 19, 2022 9:14 am

Update:

After adding the SPF record, email sent to Gmail third party SMTP STILL GOT BOUNDED BACK with the Same error message.

Then the problem was solved after changing to it's own domain SMTP.

So the reason is obvious now, Gmail blocked all suspicious email that pretend to send from a third party, using the domain's own smtp solved the problem.

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