I have so much difficulty sending authentication mail to new user that I'm considering relying only on third party logging system like stackoverflow does.
The problem is that contrary to this site, my website is targeted to a not so tech-savy audience.
So two questions arise:
What are the solution to get a rock solid email delivery solution to stop losing new costumer and fix my system? (a lost around 50% of them as I write)
Would you just stop serving identification and rely solely on a third party service if your audience was not so tech-savy?