Excessive smtp/postfix/anvil log entries from dreamhost?

vps

#1

when i look at my logs, starting like two days ago, i now see TONS of entries for alc-net.dreamhost.com. the log entries look something like this:
Feb 13 08:09:56 ps473446 postfix/smtpd[22727]: connect from alc-nat.dreamhost.com[66.33.206.8]
Feb 13 08:09:56 ps473446 postfix/smtpd[22727]: disconnect from alc-nat.dreamhost.com[66.33.206.8]
Feb 13 08:13:16 ps473446 postfix/anvil[22728]: statistics: max connection rate 1/60s for (smtp:66.33.206.8) at Feb 13 08:09:56
Feb 13 08:13:16 ps473446 postfix/anvil[22728]: statistics: max connection count 1 for (smtp:66.33.206.8) at Feb 13 08:09:56
Feb 13 08:13:16 ps473446 postfix/anvil[22728]: statistics: max cache size 1 at Feb 13 08:09:56
Feb 13 08:24:57 ps473446 postfix/smtpd[3920]: connect from alc-nat.dreamhost.com[66.33.206.8]
Feb 13 08:24:58 ps473446 postfix/smtpd[3920]: disconnect from alc-nat.dreamhost.com[66.33.206.8]
Feb 13 08:28:18 ps473446 postfix/anvil[3921]: statistics: max connection rate 1/60s for (smtp:66.33.206.8) at Feb 13 08:24:57
Feb 13 08:28:18 ps473446 postfix/anvil[3921]: statistics: max connection count 1 for (smtp:66.33.206.8) at Feb 13 08:24:57
Feb 13 08:28:18 ps473446 postfix/anvil[3921]: statistics: max cache size 1 at Feb 13 08:24:57
Feb 13 08:39:57 ps473446 postfix/smtpd[19996]: connect from alc-nat.dreamhost.com[66.33.206.8]
Feb 13 08:39:57 ps473446 postfix/smtpd[19996]: disconnect from alc-nat.dreamhost.com[66.33.206.8]
Feb 13 08:43:17 ps473446 postfix/anvil[20012]: statistics: max connection rate 1/60s for (smtp:66.33.206.8) at Feb 13 08:39:57
Feb 13 08:43:17 ps473446 postfix/anvil[20012]: statistics: max connection count 1 for (smtp:66.33.206.8) at Feb 13 08:39:57
Feb 13 08:43:17 ps473446 postfix/anvil[20012]: statistics: max cache size 1 at Feb 13 08:39:57
Feb 13 08:55:01 ps473446 postfix/smtpd[19205]: connect from alc-nat.dreamhost.com[66.33.206.8]
Feb 13 08:55:01 ps473446 postfix/smtpd[19205]: disconnect from alc-nat.dreamhost.com[66.33.206.8]
Feb 13 08:58:21 ps473446 postfix/anvil[19206]: statistics: max connection rate 1/60s for (smtp:66.33.206.8) at Feb 13 08:55:01
Feb 13 08:58:21 ps473446 postfix/anvil[19206]: statistics: max connection count 1 for (smtp:66.33.206.8) at Feb 13 08:55:01
Feb 13 08:58:21 ps473446 postfix/anvil[19206]: statistics: max cache size 1 at Feb 13 08:55:01

its like every couple minutes something is causing this. and the IP (as well as hostname) seem to indicate its coming from yall.

i have pop3/imap turned off for my VPS, but that shouldnt affect smtp, right? also, this only started feb 10. i noticed there were some other, ahem, changes feb 10. is this related to that, and can be safely ignored?


#2

That’s some of our network monitoring software checking your VPS. You can safely ignore it.