Hi Greg,

many thanks for your answer that ed me a lot. It is a little
blaming. My Virus-Scanner has blocked any access to Port 25 because of
Mass Mail Worms. After disable it, everything works fine.

Greg Hackney schrieb:
> Thomas Weiler wrote:
>
>> Hello,
>>
>> Iam using Postfix on a debian linux. When Iam open the Postfix Port
>> local with "telnet localhost 25" everythin is fine.
>>
>> Now when Iam try this from a remote machine, postfix denies the trial.
>> That ist normaly correct, but whem Iam try to send a mail from a java
>> programm on the remote machine, the following Error occours:
>>
>> Could not connect to SMTP host: 192.168.1.1, port: 25;
>> nested exception is:
>> java.net.SocketException: Software caused connection abort: connect
>>
>> OK, this could be a java problem, but when Iam using an exchange
>> server everything works fine.
>>
>> So which parameters do I have to set in the postfix master.cf to give
>> the remote machine access to send mails over postfix? I`ved tried
>> many, but with no result.
>>
>> Thanks for all answers.
>
>
> The first thing would be to verify whether the java program ever reached
> Postfix.
> If it did, both the connection info and any reject or error info would
> be contained
> in the syslog files, usually in /var/log/maillog
>
> --
> Greg