Part of this would have to do with the fact that mail servers are never really updated with new "features."
- Sendmail was first released in 1983 initially.
- Postfix was released in 1997 initially.
Though both are getting maintenance updates, and new processing features, none have improved the actual error path system. Maybe someone should write a better MTA?
- Sendmail was first released in 1983 initially. - Postfix was released in 1997 initially.
Though both are getting maintenance updates, and new processing features, none have improved the actual error path system. Maybe someone should write a better MTA?