sry if I necro the thread...to me this is what is happening right now. On every browser any OS any PC mobile phone etc that I try to login..
Locally (working on the server itself) it works perfect , its just the remote login to it that is sluggish as hell..Any ideas as to what else could cause something like this ?
started happening a few days ago ...before that it all worked perfectly well.
It is a dual-core micro-tower server equipped with SSDs as the best hardware solution, and I went with the tried-and-tested combo of Ubuntu Server 12.04 LTS + postfix + dovecot as the software basis.
Never had this issue before so I am wondering what could have caused it ?
EDIT : So i managed to fix my issue..
The problem for me was due to several things
TLDR check your whitelisting graylisting blacklisting etc due to the fact that my queue was having enourmous amounts of emails since a spam attack from multyple sources ...after finally resolving it , it works better altough sometimes its slower then before so i suspect I will have to do a bit of minor tweaking still.