Ask Al: What of Senderbase?

Emanuel writes: "I need assistance with Senderbase. What ISP report to Senderbase? Is there a way to view Senderbase complaints? We add all ours IPs in the feedback loop, but not in the feedback loop of Yahoo. Is it possible that the lack of a Yahoo feedback loop is the problem?'

Emanual, I'm sad to say that it has been a very long time since I have run into client issues that I believe to relate to Cisco's Senderbase. I don't know if Yahoo complaint data is fed to them, to be honest. But I'll throw the question out here and we'll see if someone else out there has some other ideas. Feel free to share your thoughts in comments, and thank you in advance!

List-unsubscribe on Gmail: Frequently Asked Questions (FAQ)

Google has long provided support for the list-unsubscribe header (as defined in RFC 2369) in Gmail. It is listed in their bulk sender guidelines as "strongly recommended." Meaning that if you're a good guy sender, it is expected that you will implement support for this functionality.

5 Reasons List-Unsubscribe Concerns Are Overblown

Over on the Litmus blog, Chad White shares why marketers shouldn't panic or try to disable the list-unsubscribe header on their email messages. Great insight, and the research aligns with what I've been seeing as well.

Microsoft breaks DKIM signature?

It's kind of rare, but not rare enough. Every now and then I hear of a client who is seeing intermittent DKIM failures at Microsoft Outlook.com/Hotmail properties. A Delivery Team Lead for one of the bigger ESPs posted about this on the Mailop list recently, looking for feedback and thoughts. The discussion that ensued seemed to come to a consensus that there are (rare) times when Microsoft may be modifying message content slightly, and thus causing the DKIM signature to break.

What You Need to Know About DMARC and Deliverability

Bronto's Chris Truitt explains how DMARC works, how it impacts deliverability and he outlines things to consider when configuring your DMARC record.

Spam Museum Welcomes 100,000th Visitor

From the not-just-email department: Local TV station KAAL-TV reports that the Hormel Spam Museum in Austin, Minnesota welcomed its 100,000th visitor last week. Her prize? 200 can of Spam. Yum.

Yuck: iCloud Calendar Spam

Are you one of the many millions of unlucky souls receiving spammy calendar invites? Apple is apparently aware of and working to address this type of thing, according to the iMore blog. But if you can't wait for that, the Verge has a few suggestions on what you can do about it.