Thanks! Issue fixed. One of my ISP seems to be blocking port 25 and 587, that was causing all the issues.
Mail queue was causing the issue, cleared it and the issue is gone.
-Queue ID- --Size-- ----Arrival Time---- -Sender/Recipient-------
D75CB361C16 11490 Fri Jan 8 00:48:23 email@example.com
(delivery temporarily suspended: connect to alt2.aspmx.l.google.com[2607:f8b0:4023:c03::1a]:25...
I want to know if there is any way to reduce size of the local-lvm? I would like to resize it and keep 100GB unallocated at the end of the SSD.
> df -h
Filesystem Size Used Avail Use% Mounted on
udev 7.8G 0 7.8G 0% /dev
tmpfs 1.6G 18M...