What can I do if my emails are still going to spam after setting up SPF, DKIM, and DMARC?

SPF, DKIM, and DMARC are great for authentication but won't help if your content is still regarded as spammy by filters. Make sure your emails are not too aggressive in marketing or promoting as it might still get flagged. It’s a balance between fixing authentication and improving content quality.

I faced a similar issue before. Sometimes, it's just about the email signature—if it has too much promotional content or images, it can trigger spam filters. You should also check your status on Spamhaus, just to rule out any blacklist issues since mail-tester might not cover that completely.

High volumes of emails can seriously hurt your domain's reputation, especially if they were flagged as spam in the past. It might take some time for your reputation to recover. Also, consider separating your marketing emails from transactional ones to protect your main domain.

Changes in email setup can take weeks to reflect. Keep monitoring your logs for bounces and check outgoing IPs regularly. Also, remember that different providers have different methods for categorizing spam, so analyzing your content is just as crucial as checking your reputation.

I recommend using separate subdomains for different types of emails (like transactional vs. marketing). This way, if someone marks your newsletter as spam, it doesn't affect your transactional emails. Make sure you also have an easy unsubscribe option in your bulk messaging.