email-validation

I am trying to do an SQL query, but I need to check somehow if the value is an email address. I need a way to check if $user is an email address, because I have user values such as this in my table. test test2 test@example.com test2@example.com test392 test@example.net and so on... I need to make it so $useremail checks $user to find if it's an email address. So I can UPDATE the values, WHERE user=test OR user=test@example.com , etc. $user = strtolower($olduser); $useremail = ""; mysql_query("UPDATE _$setprofile SET user=$sn, fc=$fc WHERE user='$user' OR user='$useremail"); This is not a great

Possible Duplicate: Verify email in Java I'm trying to do a very simple email validation. But the problem is when I try something like tom@@@@gmail.com it returns true. Here are the codes: public static boolean validateEmail(String email){ boolean isValidEmail = false; // Input the string for validation // String email = "xyz@.com"; // Set the email pattern string Pattern p = Pattern.compile(".+@.+\\.[a-z]+"); // Match the given string with the pattern Matcher m = p.matcher(email); // check whether match is found boolean matchFound = m.matches(); StringTokenizer st = new StringTokenizer(email,

I need to add a custom validation rule (or set of rules) to prevent a whole list of email addresses from registering. This is already running server side, but we want to have the front-end mimic this as well. I have a large array of 40 or 50 free email accounts (e.g. Gmail, Hotmail, Live mail, etc) and need to have any email addresses using one of the stems from the list validate as FALSE. How might I go about doing this? If you already have this running server-side, just make an AJAX request back to your server to reuse the same validation logic. (Your client code will make a XMLHttpRequest

I have a Unit Test project that makes use of Interop.ADODB . Here is the code: public CDO.Message ReadMessage(string emlFileName) { if (string.IsNullOrEmpty(emlFileName)) return null; CDO.Message msg = new CDO.MessageClass(); ADODB.Stream stream = new ADODB.StreamClass(); stream.Open(Type.Missing, ADODB.ConnectModeEnum.adModeUnknown, ADODB.StreamOpenOptionsEnum.adOpenStreamUnspecified, string.Empty, string.Empty); stream.LoadFromFile(emlFileName); stream.Flush(); msg.DataSource.OpenObject(stream, "_Stream"); msg.DataSource.Save(); return msg; } The problem is that I converted this project to

Currently, to avoid errors from being thrown up due to invalid email addresses, I do the following: Dim mailAddress As MailAddress Try mailAddress = New MailAddress("testing@invalid@email.com") Catch ex As Exception 'Invalid email End Try However, rather than depending on Try..Catch , is there a way of validating that the email address will be 100% valid for the MailAddress type? I know there a plenty of regex functions out there for validating emails, but I'm looking for the function which the MailAddress type uses to validate its addresses. Unfortunately, there is no MailAddress.TryParse

I have tried so many npm packages to verify the email address and domain name. Here are the some of the npm packages I have tried email-check, email-verify, email-existence, legit, email-validator and, email validation all these results in domain name existence and some other checks only. But I have to verify the particular email address exist in the domain. How should I achieve this... Can anyone pls help me to find it out Thanks in advance!! Today (and probably never) it is not possible to programmatically verify an email address. The server its at won't for both security and privacy reasons

Are german umlauts (ä, ö, ü) and the sz-character (ß) valid in the local part of an email-address? For example take this email-address: björn.nußbaum@trouble.org RFC 5322 quite clearly says, that umlauts (and other international characters) aren't allowed. If I take a look at chapter 3.4.1 , there's the following regarding the local part: local-part = dot-atom / quoted-string / obs-local-part So what means dot-atom ? It's described in chapter 3.2.3 : Well, long story short: Printable US-ASCII characters not including specials So in the whole RFC 5322 I can't see anything regarding