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Cannot telnet to port 25

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linux-howto

http://serverfault.com – When I try to telnet to port 25 using this command: telnet aspmx.l.google.com 25 I get this message Trying 173.194.69.26... And nothing more happens. I disabled csf but the problem still exsists. I also asked my VPS co. whether they have blocked port 25 and they said they have not blocked any port. In postfix logs: server2 postfix/smtp[30847]: connect to alt2.gmail-smtp-in.l.google.com[173.194.64.27]:25: Connection timed out Is it possible that google has blocked my server ip address? Edit: Tried yahoo (telnet smtp.mail.yahoo.com 25) and it has the same result. I also disabled ip (HowTos)