ISDSL SMTP Failing

[CyberFish]

Hi Guys,

Is anyone else having problems sending mail out through the ISDSL smtp servers?

If I try to send a mail to a hotmail address for example, I'm getting a failure about an invalid sender header.

Its as if the SMTP server is not including the FROM header in the send.

 

[CyberFish]

If I telnet to smto01.isdsl.net the mails are send without any problems, but if I use any of the other four servers (smtp02, 03, 04, 05) I get the following error:

550 A valid sender header is required in message ([email protected])

* email address above is substituted for protection.

 

[who.is.michael]

try these: http://www.cocacola.za.net/images/smtp.txt

 

[jannier]

Yes I get this problem on Afrihost if I try to respond to emails I received from my webmail.co.za address

Ok here you can see the error, I phoned Afrihost many times but they cant fix it.
Settings used, always same error, if my pop3 is my afrihost account then email works fine.


pop3.webmail.co.za

Tried
smtp.isdsl.net
smtp.afrihost.co.za

Send test e-mail message: Your outgoing (SMTP) e-mail server has reported an internal error. If you continue to receive this message, contact your server administrator or Internet service provider (ISP). The server responded: 503 valid RCPT command must precede DATA

OK i fixed the problem with using following smtp:
smtp.isdsl.co.za