Unlock the Inbox is a resource and tool site that's dedicated to helping companies and individuals properly configure their email to ensure better deliverability rates. On their site you will find tools related to everything email (DNS Lookups, Blacklists, SPF, DKIM and DMARC Wizards, etc.), and more.
DKIM (DomainKeys Identified Mail) is an important authentication mechanism to help protect both email receivers and email senders from forged and phishing email. Here's how to set up and use DKIM.
Hopefully by now you have read our article about what the big Yahoo DMARC p=reject rejection means for you and your email. And you may or may not be aware that yesterday AOL did the exact same thing, also publishing a DMARC policy of p=reject, which means, essentially, "reject any email coming from a yahoo.com or aol.com address if it was not sent through a Yahoo or AOL mail server."
SPF and DKIM are important resources to help secure different aspects of the mail flow. One of the problems left unsolved by SPF and DKIM, however, was the specification of the actions that needed to be taken at the receiving site based on the information conveyed by these protocols. Enter DMARC.
If there is anything that we want to emphasize in ensuring that you experience optimum email deliverability, it's that you add test accounts to your mailing list. You should do this by opening a test account with each of the major free webmail hosts, such as Hotmail and Yahoo. You can do this by adding your "company name.test" as your standard account name.
Today's deliverability tip comes to you hot-on-the trails of a retail mini-saga that unfolded for me this week with a large, well known online retailer. The saga could have been easily downgraded to a minor glitch, had it not been for the fact that I kept receiving alarming emails, all from "do not reply". It served as a good reminder that not only can "do not reply" email addresses be incredibly frustrating if some sort of alternate communication option is not provided, but they can also affect your email deliverability!
We've heard a lot about whitelisting and blacklisting, but many are unfamiliar with the term "greylisting" and, to a lesser extent, "rate limiting." Greylisting and rate limiting are two additional but lesser used methods which some ISPs may employ to attempt to deal with spam and/or a sudden influx of bulk email.
We wanted to do a mid-year check-in to remind you to make sure that your emailing practices are staying in tip-top shape, and that your email marketing campaigns were minding their p's and q's to ensure maximum deliverability.