BT Employee
Posts: 35
Registered: ‎27-07-2010

Bad Sender 550 Error Message

[ Edited ]

If you receive a bad sender 550 error message when you try to send emails, it may be Microsoft have categorised the acccount as sending spam. This may have occurred because you inadvertently clicked on a link and picked up an infection.


Steps to take:


1) Complete a full virus scan on all devices (pcs, macs, smartphones etc.) containing the email account.


2) Change your email password.



Contact us here.



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