I'm no expert on this either, but I'm fairly certain that this business requirement is simply not achievable. Due to the way mail servers operate on the Internet, there is no way for a sender to know if an intended recipient address is valid.
An email may go through several mail exchanges before it arrives at the one that will ultimately deliver to the user's inbox. At any point along the way, the email may be rejected for any variety of reasons and this rejection may occur asynchronously. On Thu, Apr 12, 2012 at 4:32 PM, Muhammad Niaz Rana <forni...@gmail.com>wrote: > Dear Michael, i know the whole process believe me :) > but this is business requirement that any person come on my Web App give > email address & search criteria do booking and get off :) > > Behind the scene we will send Leeds to him & vendor(Taxi company), and > then off course when he has done final booking confirmation email. > > So any idea for this scenario.? > > > On Thu, Apr 12, 2012 at 11:19 AM, Michael Ridland <rid...@gmail.com>wrote: > >> Muhammad >> >> Have you ever signed up to a website before? Maybe you should review a >> few different website sign-up processes to get some ideas. >> >> >> >> >> >> On Thu, Apr 12, 2012 at 4:13 PM, Muhammad Niaz Rana >> <forni...@gmail.com>wrote: >> >>> David, thanks for reply. >>> But point is this is one of my business requirements, let me explain. >>> >>> I am working on Booking system( like on line Taxi booking), >>> so how user will book, just will enter his email address and enter >>> search criteria, we will put his information in out DB and will send him >>> Leed(s) info on his address. >>> >>> Because right now we cant do execute the Sign up process, just come >>> enter email, and search criteria and do booking and use the Taxi.:) >>> >>> Any idea will be appreciated. >>> >>> On Thu, Apr 12, 2012 at 10:58 AM, David Richards < >>> ausdot...@davidsuniverse.com> wrote: >>> >>>> Muhammad, >>>> >>>> If such a thing existed, it would be used by spammers. That's why >>>> confirmation emails are sent with links that go back to your server. >>>> >>>> David >>>> >>>> "If we can hit that bullseye, the rest of the dominoes >>>> will fall like a house of cards... checkmate!" >>>> -Zapp Brannigan, Futurama >>>> >>>> >>>> >>>> On Thu, Apr 12, 2012 at 15:47, Muhammad Niaz Rana <forni...@gmail.com> >>>> wrote: >>>> > Hi All, >>>> > I have to write code to validate the email, not just regex to >>>> > validate on client side :) >>>> > I have to validate the email i.e. weather is exists or Bounce back >>>> with some >>>> > error information. >>>> > Is there any standard way to validate email address and its source >>>> code.? >>>> > >>>> > >>>> > Thanks in advance.:) >>>> > >>>> > -- >>>> > >>>> > Regards, >>>> > Muhammad Niaz >>>> > >>>> >>> >>> >>> >>> -- >>> >>> Regards, >>> Muhammad Niaz >>> >>> >> >> >> -- >> >> *Michael Ridland | ThinkSmart Digital* >> Managing Director >> P. 0404 865 350 >> E. mich...@thinksmartdigital.com.au >> W. www.thinksmartdigital.com.au >> T. www.twitter.com/rid00z >> L. au.linkedin.com/in/michaelridland >> >> >> <http://au.linkedin.com/in/michaelridland> >> >> > > > -- > > Regards, > Muhammad Niaz > >
