problem with mails

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problem with mails

Poliman - Serwis
I have mailbox on server configured with postfix. After sending email to particular user from domains:
1) gle.com
2) lotusbb.abus.de
3) [hidden email]
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
[hidden email]
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Re: problem with mails

Wietse Venema
Poliman - Serwis:
> 1) X-Postfix; connect to gle.com[69.172.201.153]:25: Connection timed out

Postfix makes a connection request and nothing happens.

> 2) host lotusbb.abus.de[62.153.75.197] said: 550 Requested action not
> taken: mailbox unavailable (in reply to RCPT TO command)

The recipient address does not exist.

> 3) 450 4.7.1 Client host rejected: cannot find your reverse hostname,

Your server's IP address has no PTR record.

        Wietse
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Re: problem with mails

Poliman - Serwis
Thank You. Now I know I need fix in case from 3rd point. :)

2017-07-21 16:32 GMT+02:00 Wietse Venema <[hidden email]>:
Poliman - Serwis:
> 1) X-Postfix; connect to gle.com[69.172.201.153]:25: Connection timed out

Postfix makes a connection request and nothing happens.

> 2) host lotusbb.abus.de[62.153.75.197] said: 550 Requested action not
> taken: mailbox unavailable (in reply to RCPT TO command)

The recipient address does not exist.

> 3) 450 4.7.1 Client host rejected: cannot find your reverse hostname,

Your server's IP address has no PTR record.

        Wietse



--
Pozdrawiam / Best Regards
Piotr Bracha



tel. 534 555 877
[hidden email]
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