/var/log/messages

[MaRiOs]

I see entries like this :

Oct 4 05:08:23 linux7 authpsa: IMAP connect from @ [87.202.47.197]
Oct 4 05:09:46 linux7 authpsa: IMAP connect from @ [139.91.190.76]
Oct 4 05:10:23 linux7 authpsa: IMAP connect from @ [87.202.47.197]
Oct 4 05:12:22 linux7 authpsa: IMAP connect from @ [87.202.47.197]
Oct 4 05:12:35 linux7 authpsa: IMAP connect from @ [139.91.190.76]
Oct 4 05:14:23 linux7 authpsa: IMAP connect from @ [87.202.47.197]
Oct 4 05:16:22 linux7 authpsa: IMAP connect from @ [87.202.47.197]
Oct 4 05:18:22 linux7 authpsa: IMAP connect from @ [87.202.47.197]
Oct 4 05:20:22 linux7 authpsa: IMAP connect from @ [87.202.47.197]
Oct 4 06:21:36 linux7 authpsa: IMAP connect from @ [62.1.66.129]
Oct 4 06:21:38 linux7 authpsa: IMAP connect from @ [62.38.192.105]
Oct 4 06:21:38 linux7 authpsa: IMAP connect from @ [62.38.192.105]
Oct 4 06:21:39 linux7 authpsa: IMAP connect from @ [62.1.66.129]
Oct 4 06:22:25 linux7 authpsa: IMAP connect from @ [87.202.47.197]
Oct 4 06:24:24 linux7 authpsa: IMAP connect from @ [87.202.47.197]
Oct 4 06:24:43 linux7 authpsa: IMAP connect from @ [62.103.215.250]
Oct 4 06:26:25 linux7 authpsa: IMAP connect from @ [87.202.47.197]
Oct 4 06:26:38 linux7 authpsa: IMAP connect from @ [62.38.192.105]
Oct 4 06:26:38 linux7 authpsa: IMAP connect from @ [62.38.192.105]
Oct 4 06:26:44 linux7 authpsa: IMAP connect from @ [62.1.66.129]
Oct 4 06:26:47 linux7 authpsa: IMAP connect from @ [62.1.66.129]
Oct 4 06:28:02 linux7 authpsa: IMAP connect from @ [139.91.190.76]

in my server all the time...
what the h...l is that ?

 

[etan]

clients connecting to email.
nothing to worry about.

 

[MaRiOs]

ok thanx.
I thought it was some kind of attacke like the ssh hammering i get