Able to receive mail, not able to send mail.

Able to receive mail, not able to send mail.

Hi all,

I have configured to receive ZoHo Mail through 'Mail' on my Mac. I had no problems with this configuration until recently.

I am still able to receive mail, which means Mail is retrieving mail from the ZoHo server. But I am not able to send anything, constantly getting this error.

The sender address hello@walrusandthebear.com was rejected by the server smtp.zoho.com.


The server response was: 5.5.1 Authentication Required.


I am able to send mail through ZoHo in my browser, simply not on my Mac. Any help would be great.


Wouter