no MAIL in SMTP connection from

[headout]

Hi all,

i noticed a message in our /var/log/exim/mainlog:

2007-08-14 16:13:19 [27090] no MAIL in SMTP connection from [127.0.0.1]:64746 I=[127.0.0.1]:25 D=0s

I've did some research, but the search on this forum didn't have any results. Even Google gave me just one result:
http://exim.org/exim-html-current/do....html#SECID258

Can anyone explain what this line is trying to tell me?

[nickp666]

basically what that means is your server connected to itself but didnt send any mail commands, probably just chkservd seeing if exim is alive

[headout]

basically what that means is your server connected to itself but didnt send any mail commands, probably just chkservd seeing if exim is alive

Ok. But why so often? And why not just from localhost, but also from IP's and Cpanelusers?

2007-08-14 17:00:59 [27497] no MAIL in SMTP connection from [***.***.***.13]:63136 I=[***.***.***.11]:25 D=0s
2007-08-14 16:55:51 [27442] no MAIL in SMTP connection from Cpaneluser D=3s

I haven't seen these lines (or didn't notice them) on our other Cpanel servers.

[nickp666]

is it from specific users or everyone?

[headout]

2 Cpanel users actually, both belonging to 1 reseller.

[nickp666]

is the reseller likely to be monitoring your uptime/service status?

seems the most likely explanation for it.