Log files too huge

Hi, so i was having trouble logging in the web ui, a quick search showed that the reason could be to the lack of disk space, which i did check using " df -h" and ended up with

/dev/sda1        27G   27G  0G  100% /

i immediately suspected the logs folder and after checking /var/logs i found some of these huge log files

73580624 Jun 25 22:13 mail.err
111123 Jun  5 07:35 mail.err.4.gz
9273871086 Jun 25 23:48 mail.info
269366125 May 21 07:37 mail.info.5.gz
3581669398 May 21 07:37 mail.log.1
136806400 May 28 16:57 mail.log.1.gz
249740250 May 15 07:36 mail.log.2.gz
304410651 May  7 12:50 mail.log.3.gz
289602662 Apr 30 07:37 mail.log.4.gz

I would just delete them but some google search warned that it may break something if i delete them, so i wanted to ask the best advise on what to do?

I kind of remember quickly setting up my mail in web gui 2 months ago and i never actually got back to fix it because the notification system was not working, it must have accumulated errors.

Here is the repeated error in mail.log.1

un 25 23:10:40 openmediavault postfix/pipe[5716]: 0DB6A988: to=<openmediavault-notification@localhost.localdomain>, relay=omvnotificationfilter, delay=0.09, delays=0.08/0/0/0.01, dsn=2.0.0, status=sent (delivered via omvnotificationfilter service)
Jun 25 23:10:40 openmediavault postfix/error[6502]: 0DB6A988: to=<*****>, relay=none, delay=0.11, delays=0.08/0/0/0.03, dsn=4.4.3, status=deferred (delivery temporarily suspended: Host or domain name not found. Name service error for name=smtp.live.com type=MX: Host not found, try again)

I edited out my email, thanks!
I am also amazed on how well linux handles lack of disk space compared to windows

Zitat von Skaronator

Just clean up the logs folder it wont break anything. Then you're able to access the webinterface and then fix your email settings. My mate got the same "issue".

Have you tested this yourself? sorry for being the anxious guy but i don't want to break anything because i don't have the time to fix it.