Recently a user tried to send an email from 365 to 365 user ( external not internet ) and got the following bounce back Generating server: SYYP282MB0848.AUSP282.PROD.OUTLOOK.COMRemote Server […]
Tag: NDR
Office 365 Failed : 550 5.4.316 Message expired, connection refused(Socket error code 10061)
Recently a few users had the following bounce backs from Office 365 to an On-Prem Mailserver with the error‘550 5.4.316 Message expired, connection refused(Socket error code 10061)Checking […]
