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When the emails is sent to gmail its being blocked stating
Delivery has failed to these recipients or groups:
___@___.___ (***********@gmail.com)
Your message wasn't delivered because the recipient's email provider rejected it.
all my records are up to date..
gmail.com suspects your message is spam and rejected it.
| natasha.daniel | Office 365 | gmail.com | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sender | Action Required | |||||||||||
| <br> | --- | --- | --- | --- | --- | |||||||
| Messages suspected as spam |
| How to Fix It |
|---|
| Try to modify your message, or change how you're sending the message, using the guidance in this article: Bulk E-mailing Best Practices for Senders Using Forefront Online Protection for Exchange. Then resend your message. |
| If you continue to experience the problem, contact the recipient by some other means (by phone, for example) and ask them to ask their email admin to add your email address, or your domain name, to their allowed senders list. |
Was this helpful?Send feedback to Microsoft.
More Info for Email AdminsStatus code: 550 5.7.350
When Office 365 tried to send the message to the recipient (outside Office 365), the recipient's email server (or email filtering service) suspected the sender's message is spam.
If the sender can't fix the problem by modifying their message, contact the recipient's email admin and ask them to add your domain name, or the sender's email address, to their list of allowed senders.
Although the sender may be able to alter the message contents to fix this issue, it's likely that only the recipient's email admin can fix this problem. Unfortunately, Office 365 Support is unlikely to be able to help fix these kinds of externally reported errors.
Original Message Details
| Created Date: | 3/2/2023 11:29:38 PM |
|---|---|
| Sender Address: | *********@*****.com |
| Recipient Address: | *********@gmail.com |
| Subject: | Email check |
Error Details
| Reported error: | 550 5.7.350 Remote server returned message detected as spam -> 550 5.7.1 [2a01:111:f403:700f::715 19] Our system has detected that this;message is likely suspicious due to the very low reputation of the;sending domain. To best protect our users from spam, the message has;been blocked. Please visit; https://support.google.com/mail/answer/188131 for more information. c23-20020aa7c997000000b004ace5dc6b61si945041edt.369 - gsmtp |
|---|---|
| DSN generated by: | PN3P287MB0113.INDP287.PROD.OUTLOOK.COM |
Using Classic Outlook on Windows for personal email, calendar, and contact management
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
So a good question is why to use officce365 and outlook when having these problems with delivery of emails to google accounts. On the other side, officce365 is not free of charge service. Why to pay it ?
I stopped my recurring payment for Office 365. Microsoft is full of incapable people who don't care about their customers.
I am having this issue as well... Tried to follow your steps but during validation I get the error "Error executing request. Smart-hosting for this recipient domain is not supported.".
Any ideas?
Hi, I will be updating the original post shortly. The solution *no longer works*, as it was a temp fix to a larger problem.
The "TRUE" solution is to add a DMARC record to your domains DNS records. I won't go into details of what dmarc is, but you can read it here: https://dmarc.org/ . The simplified version is that "YOU" are sent reports by ISPs regarding how your domain name is being used.
**If you do not know how to add a record into your DNS server, contact the person who manages it for you".
The record is very easy to build. It requires sending to an valid email address. I strongly recommend creating "THIS/AN" special email address (a group based distribution list that can receive email from outside your org). I use dmarc@ for all my domains email.
The format in DNS is as follows
HOST: _dmarc
VALUE: v=DMARC1; p=none; rua=mailto:YourEmailAddress; ruf=mailto:YourEmailAddress fo=1:d:s
TTL: I prefer 1Hour but you can choose anything.
Once it is set up correctly, you can test this by going to https://mx****/dmarc.aspx (mx****)
That is all there is too it. No need for special mail flow rules.
Issue: Your O365 hosted email bounces back as SPAM from any g-mail/google hosted domain.
SOLUTION: Create a DMARC record for your domain
The "TRUE" solution is to add a DMARC record to your domains DNS records. I won't go into details of what dmarc is, but you can read it here: https://dmarc.org/ . The simplified version is that "YOU" are sent reports by ISPs regarding how your domain name is being used.
**If you do not know how to add a record into your DNS server, contact the person who manages it for you".
The record is very easy to build. It requires sending to an valid email address. I strongly recommend creating "THIS/AN" special email address (a group based distribution list that can receive email from outside your org). I use dmarc@ for all my domains email.
The format in DNS is as follows
HOST: _dmarc
VALUE: v=DMARC1; p=none; rua=mailto:YourEmailAddress; ruf=mailto:YourEmailAddress; fo=1:d:s
TTL: I prefer 1Hour but you can choose anything.
Once it is set up correctly, you can test this by going to https://mx****/dmarc.aspx
That is all there is too it. No need for special mail flow rules.
Michael B. Morell, CISSP #431307 CCSK
Information Security