38 regular expressions found in this category!
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Pattern Title
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| Expression |
^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$ |
| Description |
Email validator that adheres directly to the specification for email address naming. It allows for everything from ipaddress and country-code domains, to very rare characters in the username. |
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joe | @foo.com | a@a |
| Author |
Rating:
Andy Smith
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| Expression |
^((?:(?:(?:[a-zA-Z0-9][\.\-\+_]?)*)[a-zA-Z0-9])+)\@((?:(?:(?:[a-zA-Z0-9][\.\-_]?){0,62})[a-zA-Z0-9])+)\.([a-zA-Z0-9]{2,6})$ |
| Description |
Captures Submatches, problem:domainname length can be longer than 64 chars, because every [a-zA-Z0-9][\.\-_] is only countet as one char. |
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| Author |
Rating:
Sebastian Hiller
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| Expression |
^(([a-zA-Z0-9_\-\.]+)@([a-zA-Z0-9_\-\.]+)\.([a-zA-Z]{2,5}){1,25})+([;.](([a-zA-Z0-9_\-\.]+)@([a-zA-Z0-9_\-\.]+)\.([a-zA-Z]{2,5}){1,25})+)*$ |
| Description |
this will accept multiple email ids separated only by semi-colons (anyway u can change it). |
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| Author |
Rating:
narendiran dorairaj
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| Expression |
^.+@[^\.].*\.[a-z]{2,}$ |
| Description |
Most email validation regexps are outdated and ignore the fact that domain names can contain any foreign character these days, as well as the fact that anything before @ is acceptable. The only roman alphabet restriction is in the TLD, which for a long time has been more than 2 or 3 chars (.museum, .aero, .info). The only dot restriction is that . cannot be placed directly after @.
This pattern captures any valid, reallife email adress. |
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| Author |
Rating:
Thor Larholm
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Email - Overly Simple
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| Expression |
^\w+@[a-zA-Z_]+?\.[a-zA-Z]{2,3}$ |
| Description |
Simple email expression. Doesn't allow numbers in the domain name and doesn't allow for top level domains that are less than 2 or more than 3 letters (which is fine until they allow more). Doesn't handle multiple "." in the domain ( [email protected]). |
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| Author |
Rating:
Steven Smith
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| Expression |
^([0-9a-zA-Z]+[-._+&])*[0-9a-zA-Z]+@([-0-9a-zA-Z]+[.])+[a-zA-Z]{2,6}$ |
| Description |
A short and sweet email address validator. Checks that the username starts and ends with an alphanumeric character, allows a few non-repeating 'special characters' (namely -, ., _, +, &) and checks for a sensible domain name (2-6 character TLD required). Some unconventional, yet technically valid, addresses will not be matched, but this is only a simple expression ;-) |
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| Author |
Rating:
Luke Arms
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| Expression |
(\w[-._\w]*\w@\w[-._\w]*\w\.\w{2,3}) |
| Description |
This is my all-time favourite e-mail validator. I've used it for years and it's never failed me :-) |
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| Author |
Rating:
Darren Neimke
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| Expression |
^([a-zA-Z0-9_\-\.]+)@([a-zA-Z0-9_\-\.]+)\.([a-zA-Z]{2,5})$ |
| Description |
Easy expression that checks for valid email addresses. |
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Rating:
Zrekam makerZ
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| Expression |
^[A-Za-z0-9](([_\.\-]?[a-zA-Z0-9]+)*)@([A-Za-z0-9]+)(([\.\-]?[a-zA-Z0-9]+)*)\.([A-Za-z]{2,})$ |
| Description |
does not allow IP for domain name : [email protected]
does not allow litteral addresses "hello, how are you?"@world.com
allows numeric domain names
after the last "." minimum 2 letters |
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Rating:
bilou mcgyver
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| Expression |
^[a-zA-Z]+(([\'\,\.\- ][a-zA-Z ])?[a-zA-Z]*)*\s+<(\w[-._\w]*\w@\w[-._\w]*\w\.\w{2,3})>$|^(\w[-._\w]*\w@\w[-._\w]*\w\.\w{2,3})$ |
| Description |
This Works good until we want a multiple email address validator, I am working on it to make it work with the multiple email address, If anyone can work on this part as to validate a multiple email address then that will produce a very good expression, i think the best of this kind. AIM - to Validate Mohit < [email protected]>; Rohit < [email protected]>; .........(any number of times) |
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| Author |
Rating:
Mohit Yadav
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| Expression |
^[a-zA-Z]+(([\'\,\.\- ][a-zA-Z ])?[a-zA-Z]*)*\s+<(\w[-._\w]*\w@\w[-._\w]*\w\.\w{2,3})>$|^(\w[-._\w]*\w@\w[-._\w]*\w\.\w{2,3})$ |
| Description |
This Works good until we want a multiple email address validator, I am working on it to make it work with the multiple email address, If anyone can work on this part as to validate a multiple email address then that will produce a very good expression, i think the best of this kind. AIM - to Validate Mohit < [email protected]>; Rohit < [email protected]>; .........(any number of times) |
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| Author |
Rating:
Mohit Yadav
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Email - Overly Simple
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| Expression |
^\w+@[a-zA-Z_]+?\.[a-zA-Z]{2,3}$ |
| Description |
Simple email expression. Doesn't allow numbers in the domain name and doesn't allow for top level domains that are less than 2 or more than 3 letters (which is fine until they allow more). Doesn't handle multiple "." in the domain ( [email protected]). |
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| Author |
Rating:
Steven Smith
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| Expression |
[\w-]+@([\w-]+\.)+[\w-]+ |
| Description |
Yet another simple email validator expression. |
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asdf | 1234 |
| Author |
Rating:
Steven Smith
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Email
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| Expression |
^([0-9a-zA-Z]([-.\w]*[0-9a-zA-Z])*@([0-9a-zA-Z][-\w]*[0-9a-zA-Z]\.)+[a-zA-Z]{2,9})$ |
| Description |
regex to validate email address
noteworthy:
(1) It allows usernames with 1 or 2 alphanum characters, or 3+ chars can have -._ in the middle. username may NOT start/end with -._ or any other non alphanumeric character.
(2) It allows heirarchical domain names (e.g. [email protected]). Similar -._ placement rules there.
(3) It allows 2-9 character alphabetic-only TLDs (that oughta cover museum and adnauseum :>).
(4) No IP email addresses though -- I wouldn't Want to accept that kind of address. |
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| Author |
Rating:
Rob Eberhardt
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| Expression |
^[A-Za-z0-9](([_\.\-]?[a-zA-Z0-9]+)*)@([A-Za-z0-9]+)(([\.\-]?[a-zA-Z0-9]+)*)\.([A-Za-z]{2,})$ |
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dot_dot@dot_i.com |
| Author |
Rating:
mahesh mandhare
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| Expression |
\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*([,;]\s*\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*)* |
| Description |
Validates 1 or more email addresses. Email addresses can be delimited with either comma or semicolon. White space is allowed after delimiter, but not necessary. I needed this to allow my users to specify multiple email addresses if they choose to do so. |
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lewis@@moten.com |
| Author |
Rating:
Lewis Moten
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| Expression |
^[\w\.=-]+@[\w\.-]+\.[\w]{2,3}$ |
| Description |
Much simpler email expression. This one forces a length of 2 or 3, which fits current specs, but you may need to alter the end as this one allows all numerals on the .COM section. |
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word | word@ | @word |
| Author |
Rating:
Gregory Beamer
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| Expression |
^([0-9a-zA-Z]([-.\w]*[0-9a-zA-Z])*@(([0-9a-zA-Z])+([-\w]*[0-9a-zA-Z])*\.)+[a-zA-Z]{2,9})$ |
| Description |
Email validation based on Rob Eberhardt's (Thanks, Rob!) email expression, but allows single letter subdomains... |
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| Author |
Rating:
Shaune Stark
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| Expression |
^\w+[\w-\.]*\@\w+((-\w+)|(\w*))\.[a-z]{2,3}$ |
| Description |
Email validation. With this short expression you can validate for proper email format. It's short and accurate. |
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| Author |
Rating:
Eric Lebetsamer
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