REGEX to match domain in email addresses

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I'm currently using this very relaxed REGEX to validate email addresses:

(/(.+)@(.+)\.(.+){2,}/.test(emailAddress)
  1. I believe that it only allows min1_allowsDots@min1_allowsDots.min2 - is this correct?

  2. How should I modify it to match only a particular domain - anything@ onlythisdomain.com?

TIA!

iSofia

(.+)@onlythisdomain\.(.+){2,}

This should do it.If .com is also fixed use

(.+)@onlythisdomain\.com

Email Regex matching domains, Url checker with or without http:// or https:// � Match elements of a url � Validate an ip address � Match an email address � Match or Validate phone number Regular Expression to Regex to match a valid email address. Character classes. any character except newline \w \d \s: word, digit, whitespace

This simple RegEx basically says:

At least one character, then an "@", then literally "gmail.com".

If you change the domain to something else, it will not match.

var email = 'Godisgood@gmail.com';

var re = /.+\@gmail\.com/;

alert(email.match(re));

How to Find or Validate an Email Address, RegexMagic—Generate regular expressions matching email addresses The 4 at the end of the regex restricts the top-level domain to 4 characters. If you use� Just copy and paste the email regex below for the language of your choice. Feeling hardcore (or crazy, you decide)? Read the official RFC 5322, or you can check out this Email Validation Summary. Note there is no perfect email regex, hence the 99.99%. General Email Regex (RFC 5322 Official Standard)

Maybe this could help you:

^[a-zA-Z0-9_.+-]+@(?:(?:[a-zA-Z0-9-]+\.)?[a-zA-Z]+\.)?
(company_domain1|company_domain2)\.ca$/g

It is a regex where you can validate the email including a specific domain such as jhosh@doctorgroup.ca or jhosh@doctors.ca and it will match only if the email is ending with @doctorgroup.ca or @doctors.ca.

4.1. Validate Email Addresses, You want to use a regular expression to validate this email address before trying to The domain name, the part after the @ sign, is restricted to characters allowed in a regular expression, you have to decide exactly what you want to match. Matching an email address within a string is a hard task, because the specification defining it, the RFC2822, is complex making it hard to implement as a regex. For more details why it is not a good idea to match an email with a regex, please refer to the antipattern example when not to use a regex: for matching emails .

Four Regular Expressions to Check Email Addresses, How do you find out if a user has entered a valid email address? The more complicated, the more accurate each is at matching only email addresses. 1. Reddit user teye points to his regex, which only allows domain� Regular Expression– Regular expression is a sequence of character(s) mainly used to find and replace patterns in a string or file. So we can say that the task of searching and extracting is so common that Python has a very powerful library called regular expressions that handles many of these tasks quite elegantly.

[Solved] regular expression for specific email domain, Almost perfect email address regular expression. the official RFC 5322, or you can check out this Email Validation Summary. NET (general pattern match) and that this means that this is a standard Internet domain resolved from the� The virtue of my regular expression above is that it matches 99% of the email addresses in use today. All the email addresses it matches can be handled by 99% of all email software out there. If you’re looking for a quick solution, you only need to read the next paragraph.

Email Address Regular Expression That 99.99% Works., +)$ regular expression pattern to separate the domain name from the email address. +), Match one or more occurrences of any character. This is the It merely determines whether its format is valid for an email address. Just as a heads up, email addresses can contain multiple "@". I'm pretty sure the last one will always separate the "user" from the "domain" though. – Chris Apr 18 '19 at 4:36

Comments
  • Thank you, vks. Appreciate your quick and concise answer.
  • Thank you for the example. Almost impossible to effectively validate email addresses nowadays.
  • or ^[a-zA-Z0-9_.+-]+(@domain1.ca|@domain2.com)$