Can receive but not send emails from email address

[SQ]

Hi, for a while now I have been unable to send emails from my email address, I get a message pop up saying that the email address is not valid. Emails continue to be received as normal though. Any advice on how this might be resolved?
Thanks

[Ahra_G]

Hi @SQ 

• May we know if this is the same with Post Office?
• If not, which email client are you using? 
• Have you tried setting up your email again? 

Otherwise, let us have your Customer ID or email address via private message in order for us to assist you accordingly. 

Regards,

Ahra_G