Vielen Dank für die Zahlreichen Antworten.
Gem.
http://www.abuse.net/relay.html scheint es Ok. zu sein.
QUOTE Mail relay testing
Connecting to mail.domain.ch for anonymous test ...
<<< 220 mail.domain.ch ESMTP
>>> HELO www.abuse.net
<<< 250 Hello.
Relay test 1
>>> RSET
<<< 250 OK
>>> MAIL FROM:<spamtest@abuse.net>
<<< 250 OK
>>> RCPT TO:<securitytest@abuse.net>
<<< 530 SMTP authentication is required.
Relay test 2
>>> RSET
<<< 250 OK
>>> MAIL FROM:<spamtest>
<<< 550 The address is not valid...
Relay test 3
>>> RSET
<<< 250 OK
>>> MAIL FROM:<>
<<< 250 OK
>>> RCPT TO:<securitytest@abuse.net>
<<< 530 SMTP authentication is required.
Relay test 4
>>> RSET
<<< 250 OK
>>> MAIL FROM:<spamtest@mail.domain.ch>
<<< 250 OK
>>> RCPT TO:<securitytest@abuse.net>
<<< 530 SMTP authentication is required.
Relay test 5
>>> RSET
<<< 250 OK
>>> MAIL FROM:<spamtest@[84.74.99.223]>
<<< 250 OK
>>> RCPT TO:<securitytest@abuse.net>
<<< 530 SMTP authentication is required.
Relay test 6
>>> RSET
<<< 250 OK
>>> MAIL FROM:<spamtest@mail.domain.ch>
<<< 250 OK
>>> RCPT TO:<securitytest%abuse.net@mail.domain.ch>
<<< 530 SMTP authentication is required.
Relay test 7
>>> RSET
<<< 250 OK
>>> MAIL FROM:<spamtest@mail.domain.ch>
<<< 250 OK
>>> RCPT TO:<securitytest%abuse.net@[84.74.99.223]>
<<< 530 SMTP authentication is required.
Relay test 8
>>> RSET
<<< 250 OK
>>> MAIL FROM:<spamtest@mail.domain.ch>
<<< 250 OK
>>> RCPT TO:<"securitytest@abuse.net">
<<< 530 SMTP authentication is required.
Relay test 9
>>> RSET
<<< 250 OK
>>> MAIL FROM:<spamtest@mail.domain.ch>
<<< 250 OK
>>> RCPT TO:<"securitytest%abuse.net">
<<< 530 SMTP authentication is required.
Relay test 10
>>> RSET
<<< 250 OK
>>> MAIL FROM:<spamtest@mail.domain.ch>
<<< 250 OK
>>> RCPT TO:<securitytest@abuse.net@mail.domain.ch>
<<< 530 SMTP authentication is required.
Relay test 11
>>> RSET
<<< 250 OK
>>> MAIL FROM:<spamtest@mail.domain.ch>
<<< 250 OK
>>> RCPT TO:<"securitytest@abuse.net"@mail.domain.ch>
<<< 530 SMTP authentication is required.
Relay test 12
>>> RSET
<<< 250 OK
>>> MAIL FROM:<spamtest@mail.domain.ch>
<<< 250 OK
>>> RCPT TO:<securitytest@abuse.net@[84.74.99.223]>
<<< 530 SMTP authentication is required.
Relay test 13
>>> RSET
<<< 250 OK
>>> MAIL FROM:<spamtest@mail.domain.ch>
<<< 250 OK
>>> RCPT TO:<@mail.domain.ch:securitytest@abuse.net>
<<< 530 SMTP authentication is required.
Relay test 14
>>> RSET
<<< 250 OK
>>> MAIL FROM:<spamtest@mail.domain.ch>
<<< 250 OK
>>> RCPT TO:<@[84.74.99.223]:securitytest@abuse.net>
<<< 530 SMTP authentication is required.
Relay test 15
>>> RSET
<<< 250 OK
>>> MAIL FROM:<spamtest@mail.domain.ch>
<<< 250 OK
>>> RCPT TO:<abuse.net!securitytest>
<<< 530 SMTP authentication is required.
Relay test 16
>>> RSET
<<< 250 OK
>>> MAIL FROM:<spamtest@mail.domain.ch>
<<< 250 OK
>>> RCPT TO:<abuse.net!securitytest@mail.domain.ch>
<<< 530 SMTP authentication is required.
Relay test 17
>>> RSET
<<< 250 OK
>>> MAIL FROM:<spamtest@mail.domain.ch>
<<< 250 OK
>>> RCPT TO:<abuse.net!securitytest@[84.74.99.223]>
<<< 530 SMTP authentication is required.
Relay test result
All tests performed, no relays accepted.