Cheers for that. > Maybe you can use some webservices to ask the email server to validate it > for you. > > http://www.serviceobjects.com/products/dots_email.asp?bhcp=1 > http://www.cdyne.com/web-services.aspx?flash=1 > > I never used them though. > > Laurent Fontaine > Sr Web Developer > American Power Conversion > > > > > Level 13, 65 Berry Street > North Sydney, NSW 2060 > AUSTRALIA > > tel: +61 2 8923 9339 > > > @: [EMAIL PROTECTED] > > > > > > > > > > [EMAIL PROTECTED] > > Sent by: To: "CFAussie >Mailing List" <[EMAIL PROTECTED]> > [EMAIL PROTECTED] cc: > > emon.com.au Subject: [cfaussie] RE: >RegEx for email checking > > > > > 22/01/2003 07:28 AM > > Please respond to "CFAussie > > Mailing List" > > > > > > > > > > In that case you are right, there really is nothing you can do that proofs > the email is existing, only send an email and see if its real and doesn't > bounce back. > you could try FINGER user@host but thats not running everywhere, you could > PING the host, but thats also disabled on most hosts now. You could check > if the domains is really registered, but it's all going a bit to far. > > I was actually not refering to the above routine either, I was just > interested in checking if it's correctly formatted, for security purposes > (hacking) and just to disallow bogus people signing up quickly. > > Thanks for the JS script by the way Bryan Nolen... > > Taco Fleur > > > Yeah but once you fullfill those requirements, whats to say that it is > > actually a valid email address? > > > > [EMAIL PROTECTED] > > > > this would pass any email validater, but one would safly say that the > email > > address is a crap one > > > > thats what I mean > > > > All you can do is check that its formatted properly, but as for if is a > > valid email address and the account exists, well good luck. > > > > I have added into my validation scripts to do a post to the actual domain > > used in the address and then check the response that you get back, IE if > you > > get a "Connection Failure" response, then there is no way the address is > > valid, but then I cam across mail servers not using standard ports ect. > > > > > > Regards > > Steve Onnis > > Domain Concept Designs > > +61 422 337 685 > > +61 3 9431 4249 > > http://www.domainconceptdesigns.com <http://www.domainconceptdesigns.com/ > > > > [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> > > http://www.cfcentral.com.au > > <http://www.cfcentral.com.au/> [EMAIL PROTECTED] > > <mailto:[EMAIL PROTECTED]> > > > > > > ("If you think it can't be done, you haven't asked me!") - Steve Onnis > > > > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED]]On Behalf Of > > [EMAIL PROTECTED] > > Sent: Tuesday, January 21, 2003 10:17 PM > > To: CFAussie Mailing List > > Subject: [cfaussie] RE: RegEx for email checking > > > > > > Hi Steve, > > > > Correct me if I am wrong, but there are a lot more things you can check > for > > with regEx, for example; > > > > - If it has a @ sign and only one > > - If the first part of the email has more than X characters, and less > than X > > characters > > - If the first part of the email contains only letters, numbers, > underscore > > or hyphen etc. > > - If the second part of the email more than X characters, and less than X > > characters > > - If the second part of the email contains only letters, numbers, > underscore > > or hyphen etc. > > - If the second part of the email contains at least one dot and no more > than > > one > > Etc. Etc. there are many more things you can check for, since I have not > > found any concrete and accurate info of what an email can consist of I am > a > > bit stuck.. > > > > Taco Fleur > > > > > > -------- Original Message -------- > > From: "Steve Onnis" <[EMAIL PROTECTED]> > > Apparently from: [EMAIL PROTECTED] > > To: "CFAussie Mailing List" <[EMAIL PROTECTED]> > > Subject: [cfaussie] RE: RegEx for email checking > > Date: Tue, 21 Jan 2003 22:09:33 +1100 > > > > > Taco > > > > > > There is not point really > > > > > > All you can do is check that it has an @ symbol and a .something > > > > > > In the end, I could meet the criteria for the check, but then just > enter > > in > > > a bodgy address anyway > > > > > > Regards > > > Steve Onnis > > > Domain Concept Designs > > > +61 422 337 685 > > > +61 3 9431 4249 > > > http://www.domainconceptdesigns.com < > http://www.domainconceptdesigns.com/> > > > [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> > > > http://www.cfcentral.com.au > > > <http://www.cfcentral.com.au/> [EMAIL PROTECTED] > > > <mailto:[EMAIL PROTECTED]> > > > > > > > > > ("If you think it can't be done, you haven't asked me!") - Steve Onnis > > > > > > > > > -----Original Message----- > > > From: [EMAIL PROTECTED] > > > [mailto:[EMAIL PROTECTED]]On Behalf Of Taco Fleur > > > Sent: Tuesday, January 21, 2003 9:15 PM > > > To: CFAussie Mailing List > > > Subject: [cfaussie] RegEx for email checking > > > > > > > > > Just wondering! > > > > > > Has anyone out there managed to create a watertight regEx for checking > and > > > validating email addresses? > > > > > > I found a few out there, but once you put them under the microscope you > > > find that they all seem to be missing something here and there. > > > > > > And also, has anyone got any idea where I can find the specifications > for > > > an email address, i.e. a document that explains what the max. & min. > chars > > > are, what it can and can't contain etc.? I had a look at www.w3c.org > but > > > no luck.... > > > > > > If not, is there anyone interested in creating one as a team effort? > > > I have some regEx examples that I have broken down and noted the > questions > > > and missing code, but my regEx is a bit rusty lately and besides I want > to > > > make sure it's a 1000% watertight check. not letting anyone get away > with > > > mistakes but also not denying anyone with a valid address... > > > > > > TIA > > > Taco Fleur
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