emails are bouncing from some email addresses with diagnosis code smtp 550 sc 001 do I need to alter the smtp port number to rectify this ?

1

emails are bouncing back from certain email addresses with diagnosis code smtp 550 sc-001 do we need to alter the smtp port number to rectify this ?

2

Hi Jackie,
could you copy the text of the full error and the content of the Tools > Operation > Log tab after this error appears?

Regards,
Olivia