Outlook Express take long time...

[lexcomputer]

I use Mandriva with postfix . The time started from connected until authentication is very long. How can I shorter the time?

thanks

[falko]

Anything in the mail log under /var/log? What do you see when you run

telnet localhost 25

and then issue

ehlo localhost

?

[lexcomputer]

[root@www ~]# telnet localhost 25
Trying 127.0.0.1...
Connected to www.domain1.com (127.0.0.1).
Escape character is '^]'.
220 www.domain1.com ESMTP Postfix (2.1.5) (Mandrakelinux)
ehlo localhost
250-www.thaismartstat.com
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-STARTTLS
250-AUTH PLAIN LOGIN
250-AUTH=PLAIN LOGIN
250 8BITMIME

[falko]

Looks ok. Anything related to this issue in your mail log?

[jmroth]

I don't think this is an Outlook (Express) issue... although using Thunderbird or alike surely wouldn't hurt....
Check if your Postfix is doing DNS reverse lookup or IDENT lookups on hostnames it cannot resolve. This may introduce delays of 30 secs or so from what I have seen
Regards,
~jm

[lexcomputer]

I think so, But I don't know how to disable doing DNS reverse lookup

[falko]

Originally Posted by lexcomputer

I think so, But I don't know how to disable doing DNS reverse lookup

Run

postconf -e 'disable_dns_lookups = yes'

and restart Postfix.