Comparisons
Managed SMTP vs DIY - The Real Time Cost
DIY SMTP looks cheap on hosting and expensive on calendar time. Here's the real time cost of self-hosting versus managed, in hours, not just dollars.
8 min read
June 29, 2026Blog
Email marketing insights
Best practices, tutorials, tips and tricks to maximize your email marketing results.
61 articles
Page 1 of 7
Troubleshooting
Spamhaus CSS Listing - Why and How to Fix It
A Spamhaus CSS listing flags your IP as low-reputation or snowshoe-style sending. It's automated and reputation-based. Fix the sending pattern, then request delisting.
5 min read
June 28, 2026
Comparisons
Postal vs Postfix. Which Open-Source Mail Server for Bulk Sending?
Postal gives you a bulk-sending platform with a web UI and bounce handling built in; Postfix gives you a battle-tested MTA and a lot of assembly required. To choose.
4 min read
June 28, 2026
Infrastructure
SMTP for Recruitment and Job-Board Email
Job alerts, application updates, and recruiter outreach each behave differently. Here's how to choose SMTP that lands all three without tanking your complaint rate.
6 min read
June 27, 2026
Comparisons
How to Connect MailWizz to Your Own SMTP Server - Step by Step
MailWizz plus your own SMTP server is the classic low-cost bulk email stack. The exact delivery server, bounce server, and DKIM configuration that makes it work.
5 min read
June 27, 2026
Comparisons
SparkPost vs Dedicated SMTP Server - Cost and Control
SparkPost is built for high-volume senders with strong analytics, but it bills per email and now sits under MessageBird. Here's how a flat-rate dedicated SMTP server compares on cost and control.
8 min read
June 26, 2026
Infrastructure
SMTP Infrastructure for ESPs Reselling Email
Reselling email means renting reputation to your customers. Here's the SMTP infrastructure ESPs need to segment IP pools, isolate bad actors, and protect margins.
6 min read
June 26, 2026
Infrastructure
Email Headers Explained - How to Read Them
Headers are the flight recorder of every email. Learn to read Received, Return-Path and Authentication-Results to trace a message and find why it failed.
6 min read
June 25, 2026
Comparisons
Elastic Email vs Dedicated SMTP Server Compared
Elastic Email is one of the cheapest per-email relays out there, but its shared pools and managed model trade control for price. Here's when a dedicated SMTP server is worth it.
9 min read
June 25, 2026