How to check for existing mail accounts?

[Alex Neuman]

Like more and more things these days I'm more in favor of "it depends"  
- in some cases it can be quite valuable (Sender verification, that is).

On Mar 29, 2008, at 3:57 PM, Brendan Pirie wrote:
> Clarification - smf-sav milter is capable of doing both sender and  
> recipient address verification.  Sender verification can (and in  
> many cases should) be disabled.