Which is the best mail server software?

[trev]

sendmail suits my needs - it does everything I want and allowed me to add milters for anything it doesn't do (I wrote a C milter for it to block spam based on the relay name/IP).

 

[johnblue]

I have had great success with the iredmail.org product:

https://docs.iredmail.org/install.iredmail.on.freebsd.html

https://www.iredmail.org/download.html

You will need to stay on top of ports by keeping thing up to date and close off services that you are not willing to accept the risk for.

 

[sol289]

For SMTP i'm using exim (switched from postfix because it was unable to suit my needs of mail processing), and for POP3 / IMAP i'm using Сyrus-Imapd. But it all depends on what mail system you're trying to build. How many users (and then - what type of DB for authentication - SQL/LDAP?)? Preferred SPAM fighting software? Webmail frontend? Specific mail processing (i.e. rewriting addresses, saving all mail, etc)?

 

[izmir tabela]

ı think thunderbird is best choice

 

[drhowarddrfine]

izmir tabela Thunderbird is not mail server software. Bad first post.