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Questions tagged [email-address]

An email address identifies an email box to which email messages are delivered.

The universal standard for the format and meaning of an email address today is the model developed for Internet electronic mail systems since the 1980s, but some earlier systems, and many proprietary commercial email systems used different address formats.

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What is the maximum length of a valid email address?

What is the maximum length of a valid email address? Is it defined by any standard?
volatilevoid
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What characters are allowed in an email address?

I'm not asking about full email validation. I just want to know what are allowed characters in user-name and server parts of email address. This may be oversimplified, maybe email adresses can take other forms, but I don't care. I'm asking about…
WildWezyr
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How to check for valid email address?

Is there a good way to check a form input using regex to make sure it is a proper style email address? Been searching since last night and everybody that has answered peoples questions regarding this topic also seems to have problems with it if it…
Bobby
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Acceptable field type and size for email address?

Possible Duplicate: Common mySQL fields and their appropriate data types What are the recommended database column sizes for names? I am looking for what would be the most correct field type and size to store email address into a mysql table. I…
Guapo
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Extract all email addresses from bulk text using jquery

I'm having the this text below: sdabhikagathara@rediffmail.com, "assdsdf" , "rodnsdfald ferdfnson" , "Affdmdol Gondfgale" , "truform techno"…
Milind Anantwar
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Check that email address is valid for System.Net.Mail.MailAddress

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…
Curtis
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Protect e-mail address with CSS only

I want to protect my e-mail address on webpages. But I don't know JavaScript and PHP. I know only HTML and CSS. So, please help me how to protect my email address with CSS only.
user3087089
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Email addresses inside URL

Is it safe to use e-mail addresses inside URLs? I mean lets say a web-application has a registered user "Bob" and Bob has been registered by using his email => Bob@hisemail.com. Now what's your opinion, is it safe for the application to accept and…
Kostas
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Does e-mail obfuscation really make automatic harvesting harder?

Many users and forum programs in attempt to make automatic e-mail address harversting harder conseal them via obfuscation - @ is replaced with "at" and . is replaced with "dot", so team@stackoverflow.com now becomes team at stackoverflow dot…
sharptooth
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Regex validation of email addresses according to RFC5321/RFC5322

Does anyone know a regex that validates email addresses according to RFC5321/RFC5322? Since (nestable) comments make the grammar irregular, only addresses without comments should be regarded. Of course, if you're interested in validating an address…
Rinke
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Are international characters (e.g. umlaut characters) valid in the local part of email addresses?

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…
Jan Köhler
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Did capitals ever matter in email addresses?

My dad says capitals used to matter (years ago) for email addresses but don't anymore. I'm fairly sure they never did because something like that involving DNS/MX changes would not change. Especially with no easy to find record online.
user588389
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May I safely treat email addresses lower case?

In theory emails are case sensitive. But using emails as system login I want them to be all lower case (i.e. john@smith.com and John@smith.com cannot be different users). Can this be a problem for some users who use case sensitivity in their email…
Jakob Stoeck
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list of email addresses that can be used to test a javascript validation script

Does anyone have a list of email addresses that I can use to test my JS address validation script? I'm looking for as complete of a list as is reasonable to test the most common edge cases, if not all cases.
user38407
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Mysql-how to update the "domain.com" in "address@domain.com"

In my database I have a lot of users who've misspelled their e-mail address. This in turn causes my postfix to bounce a lot of mails when sending the newsletter. Forms include (but are not limited to) "yaho.com", "yahho .com" etc. Very annoying! So…
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