I've heard bad things about sendmail (hard to configure, but had also a ton of vulns in the past); though I have no experience or hard evidence. However, I hav

I've heard bad things about sendmail (hard to configure, but had also a ton of vulns in the past); though I have no experience or hard evidence. However, I have had good experiences with (and have done my due diligence on) Postfix (and Dovecot) for mail services.