Anyone seeing issues with mail deliverability with Microsoft today?

Posted by indiginary@reddit | sysadmin | View on Reddit | 2 comments

Seeing some weird stuff today. Sending emails from a 365 account to gmail recipients and it's not going.

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BalbusNihil496@reddit

Have you checked the SMTP settings and the recipient's spam filter?

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indiginary@reddit (OP)

It was a gmail issue. They were delaying delivery of the onmicrosoft.com domain emails.

Learning for me - make your custom domain your default email domain and disable the onmicrosoft domain for email sending. I had to set up another domain on my 365 account the next day and doing that right at the outset fixed a lot of problems.

Thanks.