[kvee]

We made https://mailprincess.com a while back too. and http://maleprincess.com too

It lets you send letters, postcards, checks and faxes

Wound up having a decent number of users at some point, but then people started abusing the check sending features. We took it down and built some anti-fraud stuff, but never did anything to acquire users again. It does continue to work perfectly well though.

It's interesting that so many products like these exist in spaces that will probably never be huge and so there's no major VC funded player that may kill them all.

[gscott]

https://lob.com/ is a YC backed company.