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problem with telnet to smtp port
Dear All,
i am facing an strange problem. i have configured iRedmail in CentOS 5.6. after installing that, i cannot telnet to gmail, hotmail and yahoo in smtp port. but i can do telnet to any other smtp server other than those 3. even i can receive mail from gmail, hotmail and yahoo. but cannot send mail. when i try to do telnet to those server i get "connection time out". i have checked RBL and reverse dns. everything is fine. can any one tell me , how to solve this problem?
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