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smtp Transaction Time
Posted: Thu Feb 20, 2014 11:30 am
by jancas
Hi,
I tested mail sever on mxtoolbox and I get two warnings:
6.178 seconds - Warning on Connection time
8.767 seconds - Not good! on Transaction Time
Is this due to a Exim configuration?
Thank you.
Re: smtp Transaction Time
Posted: Wed Mar 05, 2014 2:14 am
by ken
jancas wrote:Hi,
I tested mail sever on mxtoolbox and I get two warnings:
6.178 seconds - Warning on Connection time
8.767 seconds - Not good! on Transaction Time
Is this due to a Exim configuration?
Thank you.
Not sure if you got your answer yet but this but this is normal. It's doing an SMTP callback which is an anti-spam technique used to verify spammers return addresses that are most likely forged. This delay is set as a throttle so spammers don't bog out your system.
You can read more about it here;
http://en.wikipedia.org/wiki/Anti-spam_ ... rification
Here is the setting:
Code: Select all
# cat /etc/exim/exim.conf | grep query_timeout
rfc1413_query_timeout = 5s
It can be changed to 0s if you want to disable it but unless it's really effecting your quality of service this setting should be fine and is an Exim default which you can read more about here:
http://www.exim.org/exim-html-current/d ... _file.html
Re: smtp Transaction Time
Posted: Wed Mar 05, 2014 10:28 am
by jancas
ken wrote:jancas wrote:Hi,
I tested mail sever on mxtoolbox and I get two warnings:
6.178 seconds - Warning on Connection time
8.767 seconds - Not good! on Transaction Time
Is this due to a Exim configuration?
Thank you.
Not sure if you got your answer yet but this but this is normal. It's doing an SMTP callback which is an anti-spam technique used to verify spammers return addresses that are most likely forged. This delay is set as a throttle so spammers don't bog out your system.
You can read more about it here;
http://en.wikipedia.org/wiki/Anti-spam_ ... rification
Here is the setting:
Code: Select all
# cat /etc/exim/exim.conf | grep query_timeout
rfc1413_query_timeout = 5s
It can be changed to 0s if you want to disable it but unless it's really effecting your quality of service this setting should be fine and is an Exim default which you can read more about here:
http://www.exim.org/exim-html-current/d ... _file.html
Ok, thank you very much!