Gateway Lists to News

When gatewaying a mailing list to Usenet news, the inews(1) program bounces the message if it is for a moderated group and lacks an Approved: header, which can be added by a filter program (Write a Delivery Agent Script on page 470) or by a news gateway delivery agent.

If your site is running (or has access to) Usenet news, the recnews(1) program that is included therein can be used to gateway mail to newsgroups. It inserts the Approved: header that inews needs and generally handles its gateway role well. One minor pitfall to avoid with recnews is making separate postings when you intend cross-postings:

mail-news: "|/usr/local/recnews comp.mail comp.mail.d" ← separate postings
mail-news: "|/usr/local/recnews comp.mail,comp.mail.d" ←  cross-posted
                                         ↑
                                    note the comma

Get sendmail, 4th Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.

Start your free trial