If you use HTML email, you can check if the last one was viewed -- and wait unti...

bprater on Nov 17, 2011 | parent | context | favorite | on: Show HN: HourlyPuppy

If you use HTML email, you can check if the last one was viewed -- and wait until it has before sending out a new email. A person might get 5 in an afternoon and one overnight.

jfi on Nov 17, 2011 [–]

ah brilliant. I like that