Show HN: A free tool to monitor and implement DMARC

http://dmarc.postmarkapp.com/?utm_source=hn&utm_medium=board&utm_campaign=dmarc

by jjets718 • 11 years ago

7 6 11 years ago

dmarc.postmarkapp.com

jjets7184• 11 years ago

Hi all! I’m Jack and I work on the Postmark team at Wildbit. This is a free tool from Postmark to help you monitor and implement DMARC for your domain. DMARC is a standard that prevents hackers and spammers from using your domain to send spam without your permission. The tool helps you do this by processing reports from major ISPs about your domain’s DMARC alignment and turns them into beautiful, human-readable weekly email digests, absolutely free. If you have any questions about this tool, I and one or two other members of the Postmark team will be around to answer your questions.

Synergyse• 11 years ago

Does implementing DMARC help prevent normal email from your domain getting marked as spam?

jjets7184• 11 years ago

Hi there Synergyse! It can. Unfortunately, it doesn't look like Google lets users set up DMARC for regular Gmail accounts. But, you can set up DMARC for Google Apps emails. First you need to set up DKIM and SPF for your Google Apps domain. Once DKIM and SPF are set up, you should start to implement DMARC slowly. Here's a good resource that will help you implement it: https://support.google.com/a/answer/2466563?hl=en. Thanks and let me know if you have any other questions!

jjets7184• 11 years ago

I should also add that the folks at Postmark who created this great tool were Chris Nagele, Artem Chistyakov, and Derek Rushforth.

spdustin• 11 years ago

We used this and discovered that our "authenticated" Mailchimp campaigns were actually failing to be validated properly, and some email systems (especially corporate systems with spam filtering appliances like Barracuda) were not delivering our email. DMARC didn't help tell us that our mail wasn't being delivered, per se, but once we made a change (our own spf/dkim records, along with other DNS-related changes) and stopped using Mailchimp's authentication, our following campaigns have seen a higher deliver rate (evidenced by more opens, clicks, and OOF responses for campaigns that aren't fundamentally different).

I'd also recommend, in addition to Postmark's tool (not in place of), checking out https://dmarcian.com. You can use both at once for DMARC aggregate reports, and additionally forward the forensic DMARC reports to dmarcian for analysis.

It's been said before, but email deliverability is hard. Thank goodness tools like this are around to help us mere mortals understand more of it, and protect the repute to of our domains in the process.

jjets7184• 11 years ago

Hi spdustin. Thanks for the comment. Deliverability is crucial, and that's one reason we built our free DMARC tool. We want anyone sending transactional email to have their emails reliably delivered to the inbox. dmarcian looks like a great tool as well, so thanks for recommending it.

Show HN: A free tool to monitor and implement DMARC

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