26 Jul
2023
26 Jul
'23
3:43 p.m.
A dns query for imap.web.de address records (IN A) returns two ip addresses.
And I'm betting each IP is a hardware load balancer with crap load of servers behind each :)
I am converting a bit to containers and there are so many applications that are not able to properly resolve and handle errors. Once they have an ip they stop doing anything. That it is nicely setup on the server side means nothing. If you do this for outgoing email, lots of email clients fail switching to the 2nd ip.