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Postfix + Dovecot from scratch — production-grade mail on a LYLIX VPS

Running your own mail server is harder than it was in 2005 but it's still very doable. This article walks the full Postfix + Dovecot setup on a current…

Mailcow on a LYLIX VPS — sizing, install, the post-install hardening pass

Mailcow is the easiest way to run a complete production mail stack on a single VPS — Postfix + Dovecot + Rspamd + SOGo webmail + a friendly admin UI,…

Reading DMARC reports without losing your mind — the XML, the patterns, the action items

If you publish a DMARC record with a rua tag, receiving mail providers send you XML reports daily. Most people look at one, decide it's incomprehensible,…

DKIM key rotation playbook — rolling keys without breaking inbound mail

DKIM keys should be rotated periodically — annually at least, quarterly if you're being thorough. The trick is doing it without breaking in-flight mail…

Getting delisted from Spamhaus, UCEPROTECT, Barracuda — the realistic process

Your IP ended up on a blocklist. The procedure to get off varies by list, but the meta-process is consistent: fix the underlying cause, document the fix,…

Sender reputation for a brand-new VPS IP — the warm-up strategy that actually works

A new VPS IP starts with no sender reputation. Whether the mail you send is delivered, spam-foldered, or rejected depends on how the first few weeks of…

Routing outbound mail through SES, SendGrid, or Postmark

Running your own inbound mail server is reasonable; sending outbound mail from a fresh VPS IP is hard mode. The IP has no sender reputation, every major…

SpamAssassin vs Rspamd — choosing your spam filter

The two real choices for spam filtering on a self-hosted mail server are SpamAssassin (the 25-year-old default that ships with most mail packages) and…

Greylisting on a mail server — when it helps, when it hurts

Greylisting is the technique of temporarily rejecting unknown sender/recipient pairs with a soft (4xx) error. Legitimate mail servers retry within minutes…

Mail aliases, catch-all addresses, and virtual mailboxes

An alias forwards mail from one address to another; a virtual mailbox is a real account behind an arbitrary address. A catch-all delivers every undefined…

Connecting Thunderbird, iOS, and Android to your IMAP server

You've got Postfix + Dovecot running on your VPS. Now you want your laptop and phone to actually read and send mail through it. This article walks the…

Migrating mail accounts off cPanel onto a self-managed VPS

You've decided to stop paying for cPanel hosting and run your mail on a LYLIX VPS instead. The web is plastered with "use our paid tool to migrate"…

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