not getting validation emails

Ok.
Sorry to ask.. but I have users that are not getting any kind of validation emails... I've asked and it doesn't seem to be specific to any kind of host... ex.. hotmail, aol, sbc...etc....
This has been working in the past and I haven't done anything ( that I know of ) to change it..
any thoughts,
MrBud
Mike C.
http://www.nhbproclub.com
Sorry to ask.. but I have users that are not getting any kind of validation emails... I've asked and it doesn't seem to be specific to any kind of host... ex.. hotmail, aol, sbc...etc....
This has been working in the past and I haven't done anything ( that I know of ) to change it..
any thoughts,
MrBud
Mike C.
http://www.nhbproclub.com