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Old 06-23-2005, 04:42 AM   #1
Swakoo
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Registered: Apr 2005
Distribution: Red Hat / Fedora / CentOS
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Takes ages to connect to smtp


I realise that after i setup my new mail server... my clients are taking a while to connect to the SMTP (Send/Receive in Outlook), it will take quite a while, but still send out...

any possible reasons for this? Anyway to shorten this "delay"?

Please advise
 
Old 06-23-2005, 06:22 AM   #2
stefan_nicolau
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Registered: Jun 2005
Location: Canada
Distribution: Debian Etch/Sid, Ubuntu
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Could it be that your smtp server looks for ident?
I remember having this problem a long time ago, and I think that disabling ident is what solved it.

http://grc.com/port_113.htm

Last edited by stefan_nicolau; 06-23-2005 at 06:23 AM.
 
Old 08-18-2005, 02:40 AM   #3
Swakoo
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Registered: Apr 2005
Distribution: Red Hat / Fedora / CentOS
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I read the article (woah) and find it quite heavy, but nevertheless it worked, after doing some googling on PLESK (oh yah, my email server is running plesk control panel)
Result: http://forum.plesk.com/showthread.php?threadid=9387

with regards to this, have some questions

1) If I am just using the regular sendmail in RHEL, how do I adjust the ident? Can't find it

2) I think plesk is using qmail, added the extension -Rt0 in the /etc/xinted.d/smtp_psa
What doess -Rt0 do? I just follow the forum (in the given URL) instructions...

3) xinted, what does this do?

updated: guys, I also found out that it could be due to reverse dns..
Quote:
From plesk FAQ
Check to make sure that the name servers that are used for reverse resolution have not been shut down or are working properly. These name servers are specified within the /etc/resolv.conf file and can be replaced if need be.

It's also very possible that the name servers in the /etc/resolv.conf file are working fine but the ip from where the client is accessing the server is not reverse resolvable. In this case you could turn off the reverse lookup completely.
- my email server is also my primary DNS server. in resolv.conf, nameserver is pointing to 127.0.0.1. correct? does it has anything to do with this reverse resolution? What is reverse resolution meaning?

- do I need to point to the secondary one too?



Many wonderful thanks to you guys
LQ Make my life so much better hehehe

Last edited by Swakoo; 08-18-2005 at 03:35 AM.
 
Old 08-23-2005, 04:32 AM   #4
Swakoo
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Registered: Apr 2005
Distribution: Red Hat / Fedora / CentOS
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guys... headache!!

with the -Rt0 it works.. faster..

but mails get stuck in remote queue after a while.. it doesn't move out!!!

How..?

I am using Plesk control panel which uses qmail... :S

I edit the file in /etc/xinted.d/smtp_psa

by adding Rt0 to server_args

wrong..?
 
  


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