Why Emails Go to Spam (and How to Fix It)
Legitimate emails land in spam for specific, fixable reasons. The 8 most common causes from both the sender and receiver side - and how to fix each one.
How Email Relay Keeps You Online During Provider Outages
When your mail server goes down, email does not stop coming. Without a relay, those messages bounce permanently. With one, they queue and wait.
Email Reputation Systems Explained: How IP and Domain Reputation Determine Delivery
Your email deliverability depends heavily on the reputation of your sending IP and domain. Learn how reputation is built, lost, and monitored using tools like Google Postmaster Tools, Microsoft SNDS, and Sender Score.
The Importance of TLS Encryption in Email: What You Need to Know
Most email travels unencrypted between servers. TLS changes that - but only if both sides support it. Here is how it works and why it matters.
Why Strict DMARC Rejection Is Not Always the Right Choice
DMARC p=reject sounds like the gold standard. But blindly rejecting DMARC failures breaks email forwarding for thousands of users. Here is the nuance.
Why Your Email Forwarder Breaks SPF (and How SRS Fixes It)
Email forwarding breaks SPF authentication by design. Here is why it happens, what SRS does to fix it, and why this matters for deliverability.
7 Reasons Why Your Emails Are Not Arriving (and How to Fix Each One)
Your emails are disappearing into the void. Here are the seven most common causes - from DNS misconfiguration to blacklisted IPs - and how to fix each one.
Google and Yahoo Email Requirements: What Changed and What You Need to Do
In 2024, Google and Yahoo enforced strict authentication and unsubscribe requirements for bulk senders. Here is what you need to comply.
What Are Transactional Emails and Why They Matter More Than Marketing
Order confirmations, password resets, shipping updates - transactional emails are the ones you actually need. How they differ from marketing, why they get special treatment, and how to protect them.
Email Authentication in Practice: When SPF, DKIM, and DMARC Pass and When They Fail
You know what SPF, DKIM, and DMARC are. But do you know why forwarded email fails SPF? Why mailing lists break DKIM? Why DMARC can reject legitimate email? Real-world scenarios explained.
Email Warmup Services: Why They Hurt More Than They Help
Email warmup tools promise better deliverability. The reality is they associate your domain with spam networks and damage your reputation.
Why Double Opt-In Matters (Even If You Are Not a Marketer)
As an email recipient, you benefit when senders use double opt-in. Here is why it reduces spam, prevents abuse, and how to tell which senders do it right.
