The dovecot container keeps restarting itself every 15 minutes.
Looks like its trying to fetch something off the internet but failing which is causing it to stop working.
Nothing was changed, emails just stopped working all of a sudden.
I got the log from the dovecot docker container:
Warning: Problem : timeout. Will retry in 2 seconds. 9 retries left.
0 0 0 0 0 0 0 0 --:--:-- 0:00:15 --:--:-- 0
curl: (28) Connection timed out after 15001 milliseconds
Warning: Problem : timeout. Will retry in 4 seconds. 8 retries left.
0 0 0 0 0 0 0 0 --:--:-- 0:00:15 --:--:-- 0
curl: (28) Connection timed out after 15001 milliseconds
Warning: Problem : timeout. Will retry in 8 seconds. 7 retries left.
0 0 0 0 0 0 0 0 --:--:-- 0:00:15 --:--:-- 0
curl: (28) Connection timed out after 15001 milliseconds
Warning: Problem : timeout. Will retry in 16 seconds. 6 retries left.
0 0 0 0 0 0 0 0 --:--:-- 0:00:15 --:--:-- 0
curl: (28) Connection timed out after 15001 milliseconds
Warning: Problem : timeout. Will retry in 32 seconds. 5 retries left.
0 0 0 0 0 0 0 0 --:--:-- 0:00:14 --:--:-- 0
curl: (28) Connection timed out after 15000 milliseconds
Warning: Problem : timeout. Will retry in 64 seconds. 4 retries left.
0 0 0 0 0 0 0 0 --:--:-- 0:00:15 --:--:-- 0
curl: (28) Connection timed out after 15001 milliseconds
Warning: Problem : timeout. Will retry in 128 seconds. 3 retries left.