I am very new to opensuse as I have only just started about 4 weeks ago. I was going along fine when suddenly I was unable to send emails. This started 2 days ago and I cannot find the reason. I can still and do still receive emails I just cannot send replies. I get an error message from the server saying,"EHLO requires valid address".
I passed this to my ISP who tells me they only support windows programs and nothing else.
Can anybody assist with this mystery?