Software and systems (and often sysadmins and possibly other users) send email. Some such software is even part of the base NetBSD system distribution. This is as true in 2020 as it was in 2000 or even 1995. Email is often much more conveniently delivered to a remote or central server (i.e. as opposed to being delivered to a locally mounted filesystem). Delivering mail to a remote mail server requires MTA software that is capable of delivering mail via the network. Postfix is a most excellent MTA that can be configured to deliver mail via the network. Conveniently Postfix is also a most excellent MTA that can be configured to (also) _receive_ mail via the network. Postfix's licensing and portability and ease of configuration and operation (as well as its extensive features and scalability) make it most excellent software for NetBSD. Ergo Postfix is in the base NetBSD system distribution. (in case you didn't know, once upon a time the MTA in NetBSD was Sendmail -- Postfix is more excellent than Sendmail in every way) See also the "Mail Aliases" and "Postfix" sections in afterboot(8). (BTW, when I set a standards-compliant "reply-to" header in my email, it means I want any reply to go there, unless I've pointed it to a public list and the reply is not to be public. I don't need to be personally CCed on replies that I've directed to a public list.) -- Greg A. Woods <gwoods%acm.org@localhost> Kelowna, BC +1 250 762-7675 RoboHack <woods%robohack.ca@localhost> Planix, Inc. <woods%planix.com@localhost> Avoncote Farms <woods%avoncote.ca@localhost>
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