3
votes
2answers
406 views

Why don’t SMTP servers just require all senders to be authenticated before accepting mail?

Why don’t SMTP servers just require all senders to be authenticated before accepting mail?
4
votes
1answer
862 views

How secure is Integrated Windows Authentication for IIS SMTP?

I have a Windows SMTP server that is currently allowing the "AUTH LOGIN" method of authenticating. As I now know, this is simply a base-64 encoding of the username and password, which is basically as ...