Outlook mail vs. Gmail

Question

For the past few days, for whatever reason, I cannot send any mail to anyone who has gmail. I have a gmail account and I just did a "test" email to my gmail account and it came back undeliverable. Please note below the error message: Also, and this is truly bazaar, I am NOT getting any email from HGTV, Travel Channel, Food Channel, etc. (II get daily emails from them. Again, for the same period of time, I haven't received any emails from these accounts.) What is going on????? Can someone explain to me why this is happening. (Note! I "ex-ed" out my personal gmail address as sown below in blue..)

• These recipients of your message have been processed by the mail server:
  ******@gmail.com; Failed; 5.3.0 (other or undefined mail system status)

    Remote MTA gmail-smtp-in.l.google.com: network error

 - SMTP protocol diagnostic: 550-5.7.1 [xx.xxxx.xxx] Our system has detected that this message is not RFC\r\n550-5.7.1 5322 compliant: duplicate headers. To reduce the amount of spam sent\r\n550-5.7.1 to Gmail, this message has been blocked. Please review\r\n550 5.7.1  RFC 5322 specifications for more information. xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx - gsmtp

Regards.

Linda

Answer 1

Hi, I am getting the same error message and cannot send any email from outlook. How was this resolved in July 2022? I appreciate any help! Thanks!

Answer 2

No this still has not been solved! I sent another test email right after I opened yours and again, this is what I get. What is going on???? This is so damn frustrrating.

Answer 3

Private message already sent. Thanks.

Good afternoon LSR2621164!

I have the same reply message
"Our system has detected that this message is not RFC 550-5.7.1 5322 compliant: duplicate headers. To reduce the amount of spam sent"

Do you solve your problem?

Answer 4

Private message already sent. Thanks.

Answer 5

Dear LSR2621164,

Good day! Thank you for posting to Microsoft Community. We are happy to help you.

I understand that you have an issue on Outlook mail vs. Gmail. Before moving forward, we need more detailed information about the situation you are experiencing.

Kindly share with us the information below:

1. Which did you add email account in Outlook (Exchange, POP, IMAP)?
2. Kindly try to send your email in OWA (Outlook web client) and confirm whether it works.
3. Could you please provide your sender email address via private message. You can click this link to provide this information: Private Message

We look forward to your response. Thanks for your cooperation.

Sincerely,

Anesu | Microsoft Community Moderator

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