We love split-testing email subject lines… and there is a ton to learn from it.
Here's 5 of our recent tests (and the results are at the bottom):
1 – A) Postcard from London vs B) DO NOT BEND [Photo Enclosed]
2 – A) He sent me this strange video… vs B) I got this email from a stranger
3 – A) seduce your subscribers! (not literally…) vs B) You smooth talker, [firstname]!
4 – A) You do this every day. vs B) You do this every day, [FIRSTNAME].
5 – A) I'm 💩 at email marketing. vs B) Thunderbirds are *go*…
WINNERS: B, A, A, B, A