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#Rfc 2822 email parser jquery update#
#Rfc 2822 email parser jquery code#
#Rfc 2822 email parser jquery license#
#Rfc 2822 email parser jquery download#

The quoted local part starts with a quotation mark, ends with a quotation mark.

TEXT can contain alphabetic, numeric, and these symbols: !#$%’*+-/=?^_`~ ( RFC 2822, section 3.4.1).

No periods can start or end the local part.

Unquoted local parts can consist of TEXT, optionally separated by periods.

The local part can be unquoted, quoted in its entirety, or quoted on a per-label basis.

Email addresses consist of a local part, the symbol, and the domain.

All email addresses are in 7-bit US ASCII.

The summary is based largely on RFC 2822. This is not because it wouldn't be possible, but because it would make it huge - the number of IPv6 permutations alone would probably double the size.Īside from the practicality, it seems entirely possible to boil it down to a single regexp.Here’s a list of the principal RFC texts about email addresses and the SMTP standard: If you allow comments in email addresses, then nested comments cannot be matched with a single regexp - a simple loop applying a reducing regexp first is needed.Īside from that, this library uses some post-match checks instead of rolling everything into one regexp. It's been said that it's impossible to parse email addresses using regular expressions alone.

Ī fullly unpacked version of the underlying regular expression can be seen here. Tim Fletcher has translated the function to ruby and python. If you want to check that it's valid, fetching the MX for the domain is a good start.Ĭonnecting to the MX to verify it's a mail server is even better.

#Rfc 2822 email parser jquery code#

The code will identify the address " as valid, even though we konw that there's no such domain as bar.baz. This does not mean it's a valid Internet email address!įor an email address to be valid on the Internet, the domain part must be a valid domain name, be resolvable and have an MX.

The code only verifies that the email address matches the various RFC specs. If you require the code to be released under a different license, please contact the author.

#Rfc 2822 email parser jquery license#

CopyrightĬreative Commons Attribution-ShareAlike 2.5 License. Reading the errata is pretty important, since some of the examples and even the EBNF are wrong in the original RFCs.

#Rfc 2822 email parser jquery update#

Ones: RFC 821 - Simple Mail Transfer Protocol ( Errata) The original SMTP RFC RFC 822 - Standard for the Format of ARPA Internet Text Messages ( Errata) The original 'email' RFC RFC 1035 - Domain names - implementation and specification ( Errata) The old domains RFC RFC 1123 - Requirements for Internet Hosts - Application and Support ( Errata) An update to RFC 10 - Simple Mail Transfer Protocol ( Errata) SMTP contains some address limits not in RFC 28 - Internet Message Format ( Errata) Superceeds RFC 8 - Application Techniques for Checking and Transformation of Names ( Errata) An informative RFC that clarifies some rules (and muddies others) RFC 4291 - IP Version 6 Addressing Architecture ( Errata) Some useful details about the horrors of IPv - Simple Mail Transfer Protocol ( Errata) Superceeds RFC 2821 (this is the latest SMTP RFC) RFC 5322 - Internet Message Format ( Errata) Superceeds RFC 2822 (this is the latest email RFC) RFC 5952 - A Recommendation for IPv6 Address Text Representation ( Errata) Superceeds RFC 4291 (this is the latest IPv6 RFC) This library was named back when there was only one RFC for email addresses there are now lots, so it would be better named RFC 822/2822/5322 at the least. We are still arguing over certain tests ) The RFCs These are borrowed fromĭominic Sayers who has a similar parser.

The test suite shows parser's results, based on these test definitions. The very latest versions are available from the GitHub repository.

#Rfc 2822 email parser jquery download#

You can download the latest stable version (release 11) of the functions here. There is an online interactive demo if you'd just like to give it a try. « Code Homepage RFC 822 Email Address Parser in PHP Source code