18 Jul
2018
18 Jul
'18
6:13 p.m.
Andrew, you should understand that you are talking to experts in Linux here.
No, i was talking to the OP who is seemingly not an expert. Advising those who not competent that they can set up and run their own mailserver is probably negligent.
Whipping up Exim and Dovecot for your own private email server is one thing. Setting up for an organisation is a completely different story. Mailservers are extremely hard to do well and a job for a specialists. Just making mail deliverable requires specialist knowledge and keeping an up-to-date and effective spam filter is near impossible nowadays.