Comparing postfix/dovecot to exchange is grossly misunderstanding what’s happening
If you’re using exchange/outlook, you’re using Active Directory.
The only real “altetnative” is the reimplementation in samba v4.. calling that an alternative is a bit of a stretch. And it barely scales to one user let alone millions like AD can
If you’re using exchange/outlook, you’re using Active Directory.
The only real “altetnative” is the reimplementation in samba v4.. calling that an alternative is a bit of a stretch. And it barely scales to one user let alone millions like AD can