Having a + is valid. Some email systems allow users to filter based on stuff after the +, so joe+...@bar.com would still go to j...@bar.com, but he could then filter it into folders. I used to do this in college.
See: http://en.wikipedia.org/wiki/Email_address The format of email addresses is local-part@domain where the local-part may be up to 64 characters long and the domain name may have a maximum of 253 characters - but the maximum 256 characters length of a forward or reverse path restricts the entire email address to be no more than 254 characters.[1] The formal definitions are in RFC 5322 (sections 3.2.3 and 3.4.1) and RFC 5321 - with a more readable form given in the informational RFC 3696[2] and the associated errata. [edit] Local part The local-part of the email address may use any of these ASCII characters RFC 5322 Section 3.2.3, RFC 6531 permits Unicode beyond the ASCII range: Uppercase and lowercase English letters (a–z, A–Z) (ASCII: 65-90, 97-122) Digits 0 to 9 (ASCII: 48-57) Characters !#$%&'*+-/=?^_`{|}~ (ASCII: 33, 35-39, 42, 43, 45, 47, 61, 63, 94-96, 123-126) Character . (dot, period, full stop) (ASCII: 46) provided that it is not the first or last character, and provided also that it does not appear two or more times consecutively (e.g. john.....@example.com is not allowed.). Special characters are allowed with restrictions. They are: Space and "(),:;<>@[\] (ASCII: 32, 34, 40, 41, 44, 58, 59, 60, 62, 64, 91-93) The restrictions for special characters are that they must only be used when contained between quotation marks, and that 3 of them (The space, backslash \ and quotation mark " (ASCII: 32, 92, 34)) must also be preceded by a backslash \ (e.g. "\ \\\""). Comments are allowed with parentheses, e.g. "john.smith(comment)@example.com", "john(comment).sm...@example.com", and "joh(comment)n.sm...@example.com" are all equivalent to "john.sm...@example.com" International characters above U+007F are permitted by RFC 6531, though mail systems may restrict which characters to use when assigning local parts. Norman Franke Answering Service for Directors, Inc. www.myasd.com On May 18, 2012, at 10:40 AM, Ray Nicholus wrote: > Examples of currently allowed (and invalid) addresses: > > accent char - ép...@example.com > '+' in domain - test@foo+example.com > '/' in domain - test@example/com > wrapped in single quotes - 'f...@example.com' > wrapped in double quotes - "f...@example.com" > > Is there currently a case in JIRA to address this?