Outgoing email is blocked in M365

Outgoing email is blocked in M365

Emails for your user's Microsoft 365 account are blocked and cannot be used for sending or receiving emails.

The most common reason for this is that your email address is suspected of sending spam and it's no longer allowed to send an email.
 

Resolution: You have to check the Restricted users portal in Microsoft 365 and unblock the email ID.
Step 1: Login to https://admin.microsoft.com/ with your admin credential.
 
Step 2: Open the URL: https://security.microsoft.com/restrictedusers on a new browser tab.

 
Step 3: Here you should find the blocked users as per the below picture.
  • Set a complex password and enable multifactor authentication for the account.
  • To remove users from the Restricted users portal, you need to be a member of the Organization Management or Security Administrator role groups, for that, steps 4 to 8 must follow.
Step 4: Click on Permissions then Roles.
Step 5: A new Microsoft Azure page will open.
Step 6:  Go to All users then search for the admin user or admin email id that you are using to manage the Office 365 portal and select the user.
Step 7: Now go to Assigned roles and click on Add assignments.

Step 8: Search for the " Security Administrator " role and add the role.

Step 9: Now go back to the URL: https://security.microsoft.com/restrictedusers and select the blocked user and click on Unblock.

Step 10: Click on Next button and the account should unblock.



    • Related Articles

    • POP3 Basic Auth Disabled in Microsoft 365

      POP3 Basic Auth Disabled in Microsoft 365 Issue: Problem receiving incoming emails with POP3 Protocol Notification from Outlook Support on Deprecation of Basic authentication in Exchange Online for POP, IMAP from October 1 2022: ...

    • Spamexperts Outgoing Spam Filter Settings

      Spam Experts Outgoing Spam filters are very effective at blocking a large percentage of outbound spam/viruses, to prevent issues with your network reputation, the spam filter can be monitored and the spammer can be blocked. Configuration in Spam ...

    • Incoming and Outgoing Message Filter in Zimbra

      Zimbra filter works as rules set in MUAs and in this filter we can organise our inbox according to our need, create folder move important mails and specific mails to folders. The process is shown as below: The key benefit is that the filter are ...

    • Common email receiving issue

      Basic Mail send/receive Troubleshooting. There are several common reasons for not being able to receive emails through MUAs, basic troubleshooting from user end so that the issue can be resolved. Here are some checks you can make in order to locate ...

    • Email id configure on ipad and iphone.

      IPad IPhone Zimbra NE incoming and Outgoing Server Details Email id configure on iPad # Step: 01 1. For configuring email id on ipad, please open the iPad and click on the email icon available at the iPad dock. # Step: 02 2. Now croll down and tap on ...