We currently have a CentOS4 32bits with 4.5.11 running in a box with a AMD64 3000+ and 4GB RAM And about 50 Users mostly POP3 users and a few Web users. Lately we´ve experienced loooong times when sending emails (2-3 mins) specially from outlook, and sometimes outlook gives a timeout error. The network its fine also DNS. I think the specs on the server cant handle the load.
This is the what the top command shows
So my question is, do you think that if I add another MTA server ill be able to send mails faster?
top - 10:42:15 up 7 days, 2:19, 1 user, load average: 6.77, 6.72, 5.52
Tasks: 142 total, 1 running, 140 sleeping, 0 stopped, 1 zombie
Cpu(s): 6.3% us, 1.3% sy, 0.0% ni, 0.0% id, 91.4% wa, 1.0% hi, 0.0% si
Mem: 3598536k total, 3575648k used, 22888k free, 12600k buffers
Swap: 5116692k total, 35280k used, 5081412k free, 1619208k cached
Thanks for the help