Re: RegularExpressionValidator and fake email addresses
Paul van Brenk <[email protected]>
| Newsgroups | gmane.comp.windows.devel.dotnet.web |
|---|---|
| Message-ID | <[email protected]> |
Check the mx record of the server and try to ask the server if the user exists (not sure about the command)... but since spam has become so prevalent most email servers don't allow/support this anymore. And you wouldn't be sure the user is actually reading the email. This is the reason Ebay/amazon etc. use the double opt-in method Paul -----Original Message----- From: Discussion of building .NET applications targeted for the Web [mailto:[email protected]] On Behalf Of James Hearne Sent: Thursday, May 24, 2007 16:34 To: [email protected] Subject: Re: [DOTNET-WEB] RegularExpressionValidator and fake email addresses No, this isn't applicable. I don't want to send out any email. I just want to check if the provided email address does exist or not. How can I do that? /James On 5/24/07, Paul van Brenk <[email protected]> wrote: > > Send an email to confirm their subscription.. all addresses that are not > yet confirmed are not valid and deleted after 48 hrs? > > Paul > > -----Original Message----- > From: Discussion of building .NET applications targeted for the Web > [mailto:[email protected]] On Behalf Of James Hearne > Sent: Thursday, May 24, 2007 15:48 > To: [email protected] > Subject: [DOTNET-WEB] RegularExpressionValidator and fake email addresses > > Hi gurus, > in our web site we often receive a lot of feedback from fake email > addresses, like [email protected]; people sign up to our newsletter using > fake addresses too. > Very bad... > In each page used to enter email addresses we have already inserted > a RegularExpressionValidator which works quite well; the problem is that > email addresses like the aforementioned one are actually valid ones! > > Could you point me to the right direction? > Thanks. > > /James > > =================================== > This list is hosted by DevelopMentor(r) http://www.develop.com > > View archives and manage your subscription(s) at > http://discuss.develop.com > > =================================== > This list is hosted by DevelopMentor(r) http://www.develop.com > > View archives and manage your subscription(s) at > http://discuss.develop.com > =================================== This list is hosted by DevelopMentor(r) http://www.develop.com View archives and manage your subscription(s) at http://discuss.develop.com =================================== This list is hosted by DevelopMentor® http://www.develop.com View archives and manage your subscription(s) at http://discuss.develop.com