Spam Resource: All Things Deliverability

Microsoft recently joined the "top four" mailbox providers (aka "MAGY," Microsoft, Apple, Google, and Yahoo) with updated authentication and email hygiene sta…

Here's a quick reminder for anyone building their own email messages: Gmail wants your Message-ID header to be properly formatted, which means that the message-ID value must …

Reputation is an oft-used term in the realm of sending email. We encourage those sending email marketing, newsletters, or other legitimate emails to have a good sending reputatio…

Swaks has long been my favorite quick and dirty tool for poking at mail servers. It's powerful, flexible, scriptable, and it doesn't hide anything behind a shiny GUI. I f…

Google recently updated its email sender guidelines with clearer instructions on what not to do when it comes to your sender name (the friendly from) and your subject line. The …

I sometimes call a re-engagement campaign a "winback" campaign because the goal is simple: try to "win back" a subscriber, meaning to keep them active in your…

As I celebrate this milestone of five million views, I thought it would be fun to throw in a bonus post showing what posts garnered the most traffic, ever, on Spam Resource. Chec…

As I have mentioned before: The actual, correct count of page views for Spam Resource is lost to the mists of time. While I moved the blog to Google's Blogger platform way ba…

WOW! Thank you everyone for your readership, friendship, shared knowledge and insight over the years. Because of all of you, Spam Resource has just reached 5 million views, accor…

Sending email messages to French subscribers with mailboxes hosted by Orange? Starting in mid-August 2025, Orange.fr will begin "triggering protection mechanisms" if y…

Deliverability folks love their dashboards. But too often, a dip in open rates or a spike in bounces sends people into full-on panic mode. My friend, expert deliverability consul…

It is time to decode another common email term here on Spam Resource! Today, we're going to talk about the "View as a Webpage"  (VAWP) or "view online" li…

People sometimes ask how they can help support Spam Resource. (Which is very kind of you. Thank you!)  Should I be selling memberships or something? I don’t think that’s going to…

If you've updated to iOS 18.5 recently and suddenly found that the Mail app on your iPhone is acting more like a frozen popsicle than a productivity tool, you're in good …

I declare that it is time for a break from email headers and spam traps to talk about ... actual spam. The canned kind. That you eat. Hormel has gone far beyond the original salt…