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6 articles tagged with email infrastructure.
Self-hosted server, dedicated IP, or shared relay? They are three different decisions and most teams pick the expensive one for a hypothetical problem. A side-by-side comparison, the five cases that justify dedicated infrastructure, and the hidden ops costs nobody scopes.
Personal inboxes cap you at a few hundred emails a day, business suites at a few thousand. Here is what every provider tier actually allows, the four separate limits that stop sends, how to size the volume you really need, and a warmup ramp for scaling without tripping spam filters.
SMTP uses ports 25, 465, 587, and 2525. Here's what each port does, how they handle encryption, and which one to use when sending email.
An SMTP relay forwards your outgoing email through trusted servers so it reaches the inbox. Learn how relays work, how they differ from direct delivery, and when to use one.
How SMTP relay services deliver your email, and the concrete criteria to evaluate one: authentication, IP reputation, own-domain sending, reporting, and pricing.
IP warming builds sender trust by ramping email volume gradually. Get a day-by-day warm-up schedule, the metrics to watch, and mistakes to avoid.
