If you change the ISP, please check with them if you do not have to change your smtp authentication settings. Some ISP requires a different authetication while using an antivirus, for instance: #smtp_server_name is the default but some ISP requires: user_name#smtp_server_name and so on…

Neither of them. I think like I wrote is a trouble into your email account setting (check your email program). Of course, I suppose you can send emails to that user with webmail or another computer… ::slight_smile: