Office 365 Smtp Relay Stopped Working

Microsoft 365 or office 365 smtp relay does not require the use of a licensed microsoft 365 or office 365 mailbox to send emails.

Office 365 smtp relay stopped working.

After creating the connector prepare to test it out. August 2017 office 365 exchange online. Testing the office 365 smtp relay connector with powershell. After three days of troubleshooting i finally figured it out.

I set up my printer for microsoft 365 or office 365 smtp relay but it s not sending email or my device was sending email using smtp relay but it stopped working. I also tried setting the dns domain name field with office 365 domain name as recommended is some reddit page but the problem still persists. Office 365 smtp relay quit working. Relay via office 365 stopped working client host blocked using spamhaus.

Before you get started testing first ensure you know what. Thank them all for helping but it s not you. I have two different unrelated office 365 that have stopped taking smtp over the last three or four days. Relaying email via office 365 suddenly stopped working.

I took about 45 minutes after submitting the form for office 365 to start accepting emails relayed from this ip address. Microsoft 365 or office 365 smtp relay has higher sending limits than smtp client submission. A common reason for issues with microsoft 365 or office 365 smtp relay is a blocked ip address. In this section we ll create some powershell scripts to allow you to easily ensure the connector is working properly.

We have not changed any tls settings or enabled disabled any ciphers in the past few months. The remote smtp service rejected auth negotiation. This can be caused by a number of issues. The queue folder quickly filled up with over a hundred e mails so what could have caused this problem.

The easiest way to do that is to use powershell. Senders are not bound by the 30 messages per minute or 10 000 recipients per day limits.