What are your highest response rate subject lines?
Mine is really simple and depending on the campaign I get 55-85% response rate.
Subject line: Hey [first name], can I ask you a quick question about [their blog name]?
First of all, if you’re not using first names you shouldn’t expect good results from generalized pitches. If you use first names AND their blog name, it creates immediate acknowledgement.
The rest of the email depends on your goal/campaign, but I always like to start with “Hi” or “Hey” [first name], I hope you’re doing well! [or] I hope this message finds you doing well. If I already know them I’ll be a lot more laid back with lines like “What’s new man?” or “How’s [your recent project] coming along?” If they’re a content creator (designer, writer, etc.) then mention their most recent work. Commend them or be bold and offer constructive feedback.