I have been managing a verified subscriber list for over two years, but recently my open rates plummeted. I’m seeing many of my campaigns land directly in the Gmail spam folder. I use a reputable ESP and avoid "spammy" trigger words. Are there new technical requirements or authentication protocols that I might be missing for 2024?
3 answers
The landscape changed significantly this year with Google and Yahoo's new sender requirements. Even with a clean list, you must ensure your technical setup is flawless. You need to have SPF and DKIM authenticated, but the big one now is DMARC. If you’re sending more than 5,000 emails a day, a DMARC policy is mandatory. Also, check your "one-click unsubscribe" header; if it’s missing, filters will flag you. I adjusted these for my client last month, and we saw the inbox placement rate jump from 65% back to 98% within two weeks. List hygiene is only half the battle now.
Are you specifically monitoring your Google Postmaster Tools to see your exact sender reputation score? Sometimes the issue isn't the content but the domain reputation itself.
Check your image-to-text ratio. If your email is just one large image, many filters will automatically block it because they can't "read" the content.
Michael is spot on; I always aim for a 60/40 text-to-image ratio to stay safe. Sarah, definitely try adding more alt-text to your images to help with those filter scans!
Robert, I actually checked Postmaster Tools and my spam rate is hovering at 0.4%, which I heard is the new threshold. Google is getting much stricter, and anything above 0.3% starts getting filtered. I'd recommend checking if your domain is on any blacklists like Spamhaus, as that can kill your reputation overnight regardless of your authentication.