Inform here your thunderbird setting.
Thunderbird > Account Settings >
info@domain.ltdConnection security: None
Authentication method: Password, transmitted insecurely
Thunderbird > Account Settings > Outgoing Server (SMTP) >
info@domain.ltdConnection security: None
Authentication method: Password, transmitted insecurely
If you need more information please tell me.
About afterlogic, untick 'Enable Auth...' on settings.
I already had disabled it.
I opened Firefox > Tools > Web Developer > Web Console And try to sending message by AfterLogic:
[19:24:26.027] POST http://webmail.domain.ltd/processing.php [HTTP/1.1 200 OK 1340ms]
And AfterLogic noticed that:
Can't send message.[19:24:46.732] POST http://webmail.domain.ltd/processing.php [HTTP/1.1 200 OK 340ms]
And AfterLogic noticed that:
Your message has been saved.And sometime: (That I think that may be relevant to
this issue)
[19:15:39.346] POST http://webmail.domain.ltd/processing.php [HTTP/1.1 500 Internal Server Error 279ms]
And AfterLogic noticed that:
Data transfer has failed, probably due to server error. Please contact system administratorBut the rest of the time:
[19:16:07.024] POST http://webmail.domain.ltd/processing.php [HTTP/1.1 200 OK 380ms]