Five things I'd check before sending another cold email. Takes about 20 minutes.
Disclosure: I run sales at Glasa, we have a AI GTM tool.
1. Your DMARC record. Free checker, ninety seconds. Google and Microsoft now reject unauthenticated mail outright rather than filing it under spam, so nothing bounces back looking alarming. Roughly a third of the accounts I audit have something broken here.
2. Your actual delivered number. Not sends delivered. Plenty of tools count policy rejections as delivered. Get the real figure before you draw any conclusion about your copy.
3. Your bounce rate. Over 2% and your domain is degrading. Over 5% and you're rebuilding from scratch. Verify every address before it goes anywhere.
4. Where your replies actually come from. About 58% come from the first email. If steps four through seven are producing nothing, they aren't neutral they're adding complaint risk for free.
5. Whether anything happened. Emails sent within 48 hours of a funding round, an exec hire, or a telling job posting do 3-5x better. Not because the writing improved. Because the email has a reason to exist.
And the math, so your expectations are calibrated: 100 positive replies takes around 5,000 verified prospects if you're dialed in, 20,000 if you're average. Nobody is getting 100 leads out of 500 sends.
Happy to go deep on any of these in the comments.