Some mails rejected when using Workmail

0

Hello,

Since a few days, some mails are being rejected :
Action : failed
Diagnostic-Code: smtp; 550 5.2.0 Mail rejete. Mail rejected. ofr_506 [506]
Status: 5.2.0

Or
Diagnostic-Code: smtp; 554 5.7.1 Command rejected
Status: 5.7.1

Or
Diagnostic-Code: smtp; 550 4.4.7 Message expired: unable to deliver in 840 minutes.<421 4.4.2 Connection timed out>
Status: 4.4.7

This happens on multiple organizations we manage.

I can't figure out why. This never happened before.
Thanks for your help !

Alexandre

Calexo
asked 5 years ago1009 views
9 Answers
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Hi Alexandre,

I'm sorry to hear you're experiencing with rejected emails. Can you tell me where you're experiencing this? Is in inbound mail or outbound mail.

If its inbound email you can check your DMARC settings as WorkMail recurrently started to enforce this. https://docs.aws.amazon.com/workmail/latest/adminguide/inbound-dmarc.html

Kind regards,
Robin

AWS
EXPERT
answered 5 years ago
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Hi,

No, this is for outbound mails.

Thank you,

Calexo
answered 5 years ago
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Hi Alexandre,

In that case it seems that the problem might be on the receiving end. The error codes should explain why WorkMail was unable to deliver the email.

Kind regards,
Robin

AWS
EXPERT
answered 5 years ago
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Whats is strange is that there is suddenly many errors.

There's not much details.
For example :

Technical report:

Reporting-MTA: dsn; a6-235.smtp-out.eu-west-1.amazonses.com

Action: failed
Final-Recipient: rfc822; jm-nat.nagel@wanadoo.fr
Diagnostic-Code: smtp; 550 5.2.0 Mail rejete. Mail rejected. ofr_506 [506]
Status: 5.2.0

Thank you,

Edited by: Calexo on Nov 27, 2019 8:06 AM

Calexo
answered 5 years ago
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Hello,
One more customer, on another Organization, reports me a outbound delivery issue.
There is clearly an issue.
Thanks,

Calexo
answered 5 years ago
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Hi Alexandre,

I'm sorry to inform you but in these cases WorkMail cannot fix the problem. Its the receiving end not accepting the message.

I can ask the service team to check if the sending server is blacklisted but this is closely monitored so that should never happen. If you can PM me the sending users email address and destination I will ask the service team to take a look.

Kind regards,
Robin

AWS
EXPERT
answered 5 years ago
0

OK,
I understand, thank you.
I send you a PM with more detailed informations.
Alexandre

Calexo
answered 5 years ago
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receiving problem

Calexo
answered 5 years ago
0

I've got the same problem. During one week 3 different email addresses (including gmail.com) gave me:

Action: failed Final-Recipient: rfc822; XXXXXXXX@gmail.com Diagnostic-Code: smtp; 550 4.4.7 Message expired: unable to deliver in 10 minutes.<220 2.0.0 Ready to start TLS> Status: 4.4.7

I sent these emails 2-3 times, but every time I received the same error. Now I don't know what I can do more, only change AWS Workmail to another service.

answered 2 years ago

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