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Cool retention hacks for your startup (marketingforindiehackers.substack.com)
1 points by keyserfaty 2219 days ago
1 comments
lurchedsawyer 2219 days ago
Sounds like a quick way to end up in a personal spam filter to me...
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keyserfaty 2219 days ago
These are people who signed up to use your app and most likely gave you permission to email them.
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