I'm a strong advocate for double opt-in, a very specific email and permission verification process. The process works by, upon receiving an email address in a signup form, sending a confirma…
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Today I’m focusing on email signup form best practices, or: how to keep the crap out of your list. You might think that nothing bad will ever happen to you, but it will. Even on…
Way back in 2016, there were a series of blog posts that laid out the reasons both for and against double opt-in. Positioned as "single opt-in versus double opt-in," it…
Double opt-in (also called "confirmed opt-in") can help to prevent list hygiene problems, but some people are dead set against it. I'm not going to change their mi…
What is COI/DOI? It's just address validation and permission verification -- you send a welcome or verification message and the recipient has to click on a link to prove they…
Verifying email addresses through methods akin to what we now think of as confirmed opt-in (COI) or (DOI) isn't a new thing. Mailing list software Majordomo added support fo…
Spamtraps are special types of email addresses. There are varying definitions, but the two most common types are email addresses that were never valid that get spam (usually typo…
Here's a link to the source of my new double opt-in sign up tool , if you'd like to check it out or install it for your own use. (It is now called WombatMail .) Of course…
Mapp Digital Senior Deliverability Specialist Tom Ellengold has posted a brief, but useful, overview of the list bombing issue faced by so many senders and email service provide…
Here are ten simple list building tests that I keep in my pocket, to share with folks when they ask. Some are better than others, but most of them are easy, no-brainer things tha…
Yesterday, Campaign Monitor posted a helpful hint on how you can add an email list signup form to your Macintosh application. I would strongly recommend against this, unless it&…
As guest blogger Jaren Angerbauer mentioned on Friday , after this whole White House spam email debacle, they promised to "implement measures" to verify and validate em…
Today's guest post comes to us courtsey of Jaren Angerbauer, the founder and CEO of DeliveryVision , an email delivery consulting firm. Jaren has more than nine years of expe…
Terry writes, "My manager wants to take all of our emails addresses in our "pending" list (ones that haven't clicked the link for the double opt-in confirmatio…
Steve writes, "My email list has grown very large over time (it's about 80,000 now). I'm sending out a non commercial email article of a religious nature. It covers …
Ken Magill (or shall I say, Mr. Poopyhead) makes a funny, yet very insightful point, in his recent article about an email he recently received from the Obama campaign. His artic…
Mark Brownlow talks about Yahoo's take on subscriber engagement here . After you read that, check out Mark's more generalized theory on what ISPs consider when determinin…
