I have a network with a single Active Directory Domain . We have about 150 users, and about 175-200 email addresses.
There are 3 diferent email domains that we currently have.
The mail server we are using was originally purchased to act solely as an internal email server.
Since we bought it, we have brought our email in-house, and decided to just use the same mail server as our primary mail server.
This worked fine for a year and a half. now that we are getting bigger, and Spam seems to be getting worse,
it seems that this mail server just isnt cutting it. It allows a lot of spam in, and rejects a lot of legitimate messages.
My question is whether I should buy exchange or something cheaper like merkemail, workgroup, Imail Server or something else.
What would do inmy situation?