Postfix + David Tobit

[planet_fox]

Hi

I have Problem with Postfix and Tobit (Mailserver for Windows) . When Tobit want mail send to the Postfix server comes this message

SMTP Server: Data Ok Error !
Mail trainsmission aborted

Can find any probelems or errors in mail.log or mail.error

The Problem is only one one domain

[planet_fox]

So we have change die connections from tiscali to da call by call over isdn not over dsl. We have no Problems over this connection. Have any person a Idee whats problem this is. I can surf in Internet and can't send mails over tobit .

[falko]

Maybe your provider is blocking port 25?

[planet_fox]

No, I have see long time get any mail out and than go one mail out to server than go long time no time out. We do watching the problem. On Monday we have change provider and we have no problems. We change on friday to the old provider and see whats make the server. When same problem from monday we change the dsl Provider it is tiscali we have by other custummers other problems with tiscali. for two weeks a company have a day no internet and special anwhere from tiscali is "Yes we have a problem on this area, we work on this problem. I can understand when this problem is three hour is No Problem. I can't understand solve the problem on next day .