I've been having intermittent problems sending mail through smtp.vodamail.co.za via Telkom ADSL. Some days no problems, others, like today - its near impossible. I have ticked the 'My outgoing server requires authentication' and 'Use same settings as my incoming mail server' tick boxes. When I try to send mail, I get a box asking for username and password. I have checked both are correct by logging into
www.vodacom4me.co.za My connection runs through a linux box so I've had a look at the packets using tcpdump and I see I'm connecting to various vodamail smtp servers e.g. smtp1.vodamail.co.za or smtp4.vodamail.co.za so I guess there is load balancing going/DNS round robin. When I can't send mail, I see 535 5.7.0 Error: authentication failed using tcpdump. I've tried via the 3G connection fail over connection and I get the same error. If I untick the '...server requires authentication' then I get 554 Error: Recipient address rejected: Access denied. I have tried smtp.vodacom.co.za - same problem.
I can receive mail no problem so my password must be correct. I've tried the 155 number and I get no useful advice apart from getting the runaround in deleting a re-creating the account. Is anybody else having the same problems? V3G any ideas?
btw, just sent a mail to myself and it went through i.e. I got it back in my inbox. Then I sent a test mail to an external address and it gave error 535. Tried again and it went through? Huh?