View source for Rel attribute values/reply-to

'''<dfn>reply-to</dfn>''' is a <code>rel</code> value for use when linking to a target URL (e.g. an email address) where notifications or contact information for the current page should be sent. 

For example, on a technical specification, the contact link for the responsible working group should have a <code>rel="reply-to"</code> attribute-value pair.

The <code>reply-to</code> <code>rel</code> value is named after the <code>Reply-To</code> Mail Header introduced in the IETF [http://tools.ietf.org/html/rfc822#section-4.4.3 RFC822], ARPA INTERNET TEXT MESSAGES.

'''Note:''' <code>reply-to</code> is distinct and different from <code>in-reply-to</code>, which indicates that the current page is a reply to the page being linked to.

== Syntax ==

    <a rel="reply-to" href="mailto:public-wg-name@w3.org">public-public-wg-name@w3.org</a>

== Publishers ==
In a document that has a point of contact for comments, questions, or other feedback, the <code>reply-to</code> <code>rel</code> value should be used on a hyperlink to indicate that contact information.

If there are multiple points of contact for a document, all of these contacts should be concatenated into a list of email addresses in a single hyperlink with the <code>reply-to</code> rel value. The <code>reply-to</code> <code>rel</code> value should not be used on multiple hyperlinks in the same document.

== Consumers ==
If a page contains a hyperlink with the <code>reply-to</code> <code>rel</code> value, the first hyperlink with the <code>reply-to</code> <code>rel</code> value should be used as the address(es) to send the contact message.

== Example Usage ==

* An annotation system that allows users to directly annotate a technical specification in a browser can look for the feedback link with <code>rel="reply-to"</code> to automatically detect the mailing list to send a notification when an annotation is made.
* An article on a news site could include a feedback link with <code>rel="reply-to"</code> to allow people to easily and consistently send in corrections through another channel than a comments mechanism.
* A popular blog could include a feedback link with <code>rel="reply-to"</code> to allow readers to send in feedback to the author even if the article has been republished on third-party aggregator sites.

== See Also ==
* [http://tools.ietf.org/html/rfc822 RFC822]
* [http://tools.ietf.org/html/rfc2822 RFC2822]