Guides

Posts filed under Guides.

mailing list deliverability, SPF, DKIM, DMARC, email authentication

Latest Featured July 6, 2026

Mailing List Deliverability: A Guide to SPF, DKIM, and DMARC

Why mailing lists break email authentication and how to configure SPF, DKIM, and DMARC (including Mailman dmarc_moderation_action) for inbox delivery.

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Mailman 2 vs Mailman 3, Mailman 3, Postorius, HyperKitty, email deliverability

Featured July 6, 2026

Mailman 2 vs Mailman 3: Which Should You Choose?

A clear comparison of Mailman 2 vs Mailman 3 across admin, archives, deliverability, and API so you can choose the…

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Google Groups alternatives, Groups.io, Gaggle Mail, GNU Mailman, managed Mailman hosting

Featured July 6, 2026

Best Google Groups Alternatives for Organizations (2026)

Compare the best Google Groups alternatives, from Groups.io and Gaggle Mail to managed Mailman hosting, and find the right home…

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migrate Mailman 2 to Mailman 3, Mailman 3, Postorius, HyperKitty, Mailman migration

Featured July 6, 2026

How to Migrate from Mailman 2 to Mailman 3: A Complete Guide

Step-by-step guide to migrating from Mailman 2 to Mailman 3: import lists, members, and archives without losing subscribers or breaking…

Read 6 min