I have mailbox on server configured with postfix. After sending email to particular user from domains: 1) gle.com 2) lotusbb.abus.de 3) sassieditore.it <i...@sassieditore.it> I have errors like below: 1) X-Postfix; connect to gle.com[69.172.201.153]:25: Connection timed out 2) host lotusbb.abus.de[62.153.75.197] said: 550 Requested action not taken: mailbox unavailable (in reply to RCPT TO command) 3) 450 4.7.1 Client host rejected: cannot find your reverse hostname, [IP-address-of-my-server]
About 1st point I tried telnet to localhost: Code: root@s1:~# telnet localhost 25 Trying 127.0.0.1... Connected to s1.example.com. Escape character is '^]'. 220 serwer-1.localdomain ESMTP Postfix (Ubuntu) ehlo localhost 250-serwer-1.localdomain 250-PIPELINING 250-SIZE 250-VRFY 250-ETRN 250-STARTTLS 250-AUTH PLAIN LOGIN 250-AUTH=PLAIN LOGIN 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN and I tried telnet to IP of domain gle.com: Code: root@s1:~# telnet gle.com 25 Trying 69.172.201.153... telnet: Unable to connect to remote host: Connection timed out Ping gle.com gives "request timed out". What that errors means? -- *Pozdrawiam / Best Regards* *Piotr Bracha* *tel. 534 555 877* *ser...@poliman.pl <ser...@poliman.pl>*