Error: Remote Server returned ‘550 5.2.11 RESOLVER.RST.SendSizeLimit.Sender; message too large for this sender’

Please check the message send/receive limit. You are sending message which is larger than the allowed limit.

Change message size limit using powershell.

How to Change maximum Office 365 attachment size with PowerShell

Change message size limit using admin center.

How To Change Office 365 Message Size Limit Using Web Console

 

Error: Your message wasn’t delivered to anyone because it’s too large.

Please check the message send/receive limit. You are sending message which is larger than the allowed limit.

Change message size limit using powershell.

How to Change maximum Office 365 attachment size with PowerShell

Change message size limit using admin center.

How To Change Office 365 Message Size Limit Using Web Console