A Postfix server left on default settings is a magnet for spammers. Within hours of going online, bots will probe it for open relays, hammer it with authentication attempts, and try to use it to blast spam — which can get your IP blocklisted and your domain’s reputation destroyed. Learning how to secure postfix properly … Read more
Postal is a modern, open-source mail server built for sending and receiving email at scale, and running it in containers makes installation far simpler than a traditional setup. This postal docker guide walks you through installing Postal on Docker, configuring DNS, creating your first mail server and domain, and sending your first test email — … Read more
If your open rates are sliding and more of your mail lands in spam, the problem is probably not your subject lines. It is your list. Email list cleaning is the unglamorous maintenance work that decides whether mailbox providers like Gmail and Outlook trust you — and it is the single highest-leverage deliverability fix most … Read more
If you are hunting for a self hosted mailchimp alternative, you are probably tired of the same two problems: pricing that punishes you for growing, and zero real control over your own sending infrastructure. Mailchimp charges you per contact even when those contacts never open an email, and your deliverability is at the mercy of … Read more
Setting up an smtp relay home server sounds like overkill until your self-hosted apps start failing to send mail. Whether you run Nextcloud, Home Assistant, a personal blog, or a lab full of monitoring scripts, every one of them needs reliable outbound email — and routing it through Gmail or a random SMTP provider eventually … Read more
If you want full control of your email without paying per-mailbox fees, running a docker mail server is the shortest path from an empty VPS to a working mail system. The open-source docker-mailserver project packages Postfix, Dovecot, SpamAssassin, ClamAV, and more into a single, production-ready container image — so instead of hand-wiring half a dozen … Read more
If you run a self-hosted Postal mail server, postal email forwarding is the cleanest way to route mail sent to one address onward to another mailbox, an external provider, or a script — all without running a second mail stack. Unlike traditional Postfix alias tables, Postal handles forwarding through its routing engine: routes match incoming … Read more
If you are self-hosting email infrastructure in 2026, two names keep coming up in every discussion: Stalwart and Postal. Choosing between stalwart vs postal is not a question of which one is “better” — it is a question of what you are actually building. One is a complete all-in-one mail server; the other is a … Read more
Adding iRedMail multiple domains is built in from the start: every additional domain is a virtual domain in the MySQL (or LDAP) backend, sharing the same Postfix, Dovecot, Amavisd, and ClamAV stack. This guide shows you how to add new domains safely: registering them in the backend, creating mailboxes, pointing DNS records, signing mail with … Read more
If you are choosing a self-hosted mail server for a small business or a personal domain, the mailcow vs mail-in-a-box debate comes up almost immediately. Both are free, open-source, and turn a single VPS into a complete mail stack — but they take very different paths to get there. Mailcow ships as a set of … Read more