How Bitly Trashes Your Deliverability

How Bitly Trashes Your Deliverability

Other Shady Shorteners Are Available. Ah, Bitly. The link shortener of choice for people who love mystery. What’s behind that cryptic “bit.ly/3uZxYqF”? A cat video? A phishing site? Malware in a trench coat? No one knows. Not your reader, not the inbox algorithm, and...
Why Email Services Don’t Hand Out SPF Records Anymore

Why Email Services Don’t Hand Out SPF Records Anymore

(Even Though They Really, Really Should) So you’ve signed up for a shiny new email tool, maybe Mailchimp, maybe SendGrid, maybe something your cousin’s startup built. You follow the setup guide like a good internet user. It tells you to add a DKIM record. Great. Job...
Why SPF Limits Might Kill Your Emails

Why SPF Limits Might Kill Your Emails

Beware the SPF 10-record lookup limit Let’s talk about one of the most annoying quirks in email authentication: the SPF 10-lookup limit. It’s obscure, it’s silent, and if you don’t know it’s there, it can completely wreck your deliverability without so much as a...
Seeing rDNS issues in your delivery tests?

Seeing rDNS issues in your delivery tests?

Why rDNS is defunct for 365 users Have you ever used a warmup tool, run delivery tests or tools like MX Toolbox and it says you need to set up reverse DNS (rDNS)? And then scratch your head for hours Googling it to see what the problem is? Have you stare into the...