A go-to resource on best practices for email security, anti-spam trends, product updates and everything in between.
Posts
Industry
Shared IP vs Dedicated IP for Transactional Email Sending: What’s Right for You?
·6 min read
Choosing between a shared IP and a dedicated IP is not just a technical preference. It affects deliverability, sender reputation, operational overhead, and how resilient your email system will be …
Diagnosing SMTP 5xx and 4xx Error Codes in Transactional Email
·7 min read
When transactional email fails, the first useful clue is often the SMTP response code. These three-digit codes tell you whether the receiving server rejected the message permanently, deferred it temporarily, …
Why Gmail Sends Your Transactional Emails to Spam (and How to Fix It)
·6 min read
Transactional email should be the easiest email to deliver. Users ask for it, expect it, and often need it immediately. Password resets, signup confirmations, receipts, billing alerts, and security notifications …
Choosing the Right Sending Method: SMTP vs API for Transactional Email
·6 min read
Choosing how to send transactional email is not just an implementation detail. It affects reliability, observability, scalability, and how well your product handles critical workflows like password resets, receipts, billing …
Common Use Cases for Transactional Email: Password Resets, Receipts, and Signup Confirmations
·6 min read
Transactional emails support some of the most important moments in a product experience. They help users regain account access, confirm payments, verify identities, and complete onboarding. When these emails fail, …
Transactional email is infrastructure. Password resets, account alerts, receipts, signup confirmations, and billing notices only do their job if they reach the inbox quickly and reliably. That is why deliverability …
SMTP vs API for Transactional Email: Which Should You Use?
·6 min read
When you send transactional email, the delivery method shapes more than implementation. It affects reliability, observability, speed, debugging, and how well your system handles growth. For simple applications, either SMTP …
How to Improve Transactional Email Deliverability (and Stay Out of the Spam Folder)
·6 min read
Transactional email is infrastructure. Password resets, signup confirmations, receipts, billing notices, and security alerts all depend on timely inbox placement. When those messages land in spam or fail to arrive, …
Transactional emails do real work. They help users reset passwords, confirm purchases, verify accounts, review invoices, and respond to security events. When these emails fail, product workflows break. That is …
Getting started with MailChannels is usually straightforward, but small configuration mistakes can still break critical email workflows. A misconfigured SMTP port, missing authorization header, bad DNS record, or TLS mismatch …