Spam Resource: All Things Deliverability

Example SMTP Errors When sending email messages to the various AT&T consumer email domains (ameritech.net, att.net, bellsouth.net, currently.com, flash.net, nvbell.net, pacbe…

Did you know that I've got a friend named Pat Mallinger , who, along with his friend Cameron Pfiffner, have led a fantastic  jazz group called Sabertooth since ... at least N…

Today I’m lucky to be able to share a guest post from email deliverability and technical expert Frank Rix  (CEO of email service provider  dialogue1  and Technical CRM Consultant…

Yesterday, my wife and I were jumping into the car about noon to go grab lunch together. “Ugh,” she said after she got settled and we started driving away. “Something changed in …

I've blogged about this before, covering the different types of NDRs (non-delivery reports, aka bounces or rejections) that you receive back when trying to send email messag…

Thanks to Lauren Meyer of Socketlabs for suggesting that Valentine’s Day was a good time for folks to share why we love email so much. Want to see what other folks are sharing?…

Did you know that the latest version of the PCI (Payment Card Industry) Data Security Standard references DMARC? But it wasn't quite clear to me if DMARC is specifically requ…

If you’ve run into a DKIM failure with the error "dkim=fail (no key for signature)" in the authentication results header, you’re probably wondering what’s wrong and how…

Every once in a while somebody drops into comments espousing a conspiracy theory around how blocklists are “designed to extract money from email senders” or some other crazy thin…

Hey, a common question I've been seeing and hearing a lot lately is one related to the topic of how to deal with SPF alignment for alias domains in Google Workspace. An alias…

It's International Inspirational Poster Day here at Spam Resource, and to celebrate, allow me to share some good stuff: Dave Smith 's " Deliverability Manifesto .&qu…

An anonymous reader asked the following question in a comment the other day: “[Do you have] any recommendations related to all emails ending up in spam/junk folder when sending t…

If you’re curious which ESP or marketing automation platform just sent you a given email message, here are three easy things you can try. First, try the ESP Finder tool from Send…

If you're working on implementing a BIMI (Brand Indicators for Message Identification) logo for your email domain, congratulations! BIMI is an excellent way to boost your br…

Marketing automation platform Klaviyo is hiring! They’ve got three deliverability/compliance-related roles posted at the moment. There are postings for  Deliverability Strategis…