Over 61% of Postmark customers authenticate their emails. Do you?

I donât think we can stress enough the importance of authentication in sending email.
Every day we find customers who have delivery issues that are instantly solved by updating SPF records or signing their emails with their own Domain Keys. Because we know how critical it is, weâve built it right into the Postmark setup process. Interestingly, we actually have customers who think itâs a required step to use Postmark, and we donât think thatâs a bad thing.
Amazingly, over 60% of all Sender Signatures of our customers have DKIM and/or SPF setup correctly.
And of course, custom DKIM comes with any account for free, whether you are using the first 1000 credits or youâre a high volume sender.
Sign your emails, remove the doubt #
ISPs have a lot of tools at their disposal to check if what youâre sending to them is legitimate mail. As they continue to evolve, they get smarter and smarter at making that important distinction.
The new word of the day is engagement, the idea of ISPs watching what customers actually do with your email. For instance, whether they open it or send it to trash right away. If they open it, how long does it stay open?
All of this is meant to protect the recipient from not only Viagra email, but also useless junk mail. You can avoid a lot of delivery problems by simply telling the ISP who you are. Engagement, content scanning, etc are tools that ISPs use if they have doubts.
Your job, remove the doubt. And weâve designed Postmark to help you do that.
The âwhyâ to signing your emails #
When an email is sent to the ISP, they:
- check the IP reputation
- check the domain reputation
- check the content
Weâve got the IP reputation covered for you, but you are in control of the other two.
Content is the really tricky one, so you at least want to make sure the other two are rock solid. Your domain reputation is 2 parts being a good sender and 1 part making sure the ISP knows who you are. When you use an ESP, that means telling them that you have allowed us to send emails on your behalf.
Whatâs nice about transactional email, our speciality here at Postmark, is that most times you donât need to worry about the tests of engagement, so long as youâve shown the ISP that you are following the rules. Signing your email is key here, because once itâs signed, youâve taken a lot of the doubt away. For example, a spammer can try to spoof @adobe.com. What they canât do is access Adobeâs DNS, so theyâll never be able to sign their emails. When AOL sees an email from Adobe thatâs not signed, itâs easier to make the decision to trash it.
âBut I need to send on behalf of my customersâ #
If youâve been whitelisted to send from many domains, you probably heard from our team that we donât recommend it, but weâll do it if you need it. The reason we advise against it is that you end up sending email without authentication.
When you send from your customerâs email address, youâre not going to be able to sign that email with DKIM. Instead weâll sign it with our own DKIM, but that comes with issues as well - like GMailâs âviaâ tag for example.
Our recommended approach is to send from your own email, and then change the From Name and Reply To to be the customers. For example:
"Bob Smith" info@yourcompany.com, reply to: "Bob Smith" bob@smith.com
Takeaway #
Getting to the Inbox is really hard already. As a company, we want to make it easier, but we canât do it all for you. We take a really strong stance on recommending email authentication to our customers in Postmark and weâve designed it into our workflow to make it simple. With what weâve seen, youâre doing yourself a huge injustice without it. ISPs, even smaller ones, are starting to make this a requirement for getting through.
Do yourself and your recipients a favor and just follow the simple rules. Itâs already a difficult job. Not using DKIM yet? Go to your sender signatures page and follow the steps or sign up for a Postmark account and see how easy it is.