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return path - When the email is put in the recipient's email box, a new mail header is created with the name "Return-Path:" containing the address on the MAIL FROM command. Earlier forms of email (such as UUCP ) would require information about each "hop" along the path that the email traveled to reach the destination, hence the "path" part of ...
For example, the Delivery Status Notification extension defined in RFC 3461 requires a null return path when sending email with a "NOTIFY=NEVER" option to a non-conforming server. Some e-mail bounces (incorrectly) get sent not to the return address, but to the e-mail address on the From: header.
In this example let's assume that the 2nd MTA forwards the mail to a 3rd MTA, where it is finally delivered. The final MTA is also known as Mail delivery agent (MDA), putting the mail into the mailbox of the recipient. The MDA transforms the reverse path into the known Return-Path header field: Return-Path:<@news.server.example:not-for-mail ...
The HTTP Location header field is returned in responses from an HTTP server under two circumstances: To ask a web browser to load a different web page (URL redirection). In this circumstance, the Location header should be sent with an HTTP status code of 3xx. It is passed as part of the response by a web server when the requested URI has:
In a strict sense, bounces sent with a non-empty Return-Path are incorrect. RFC 3834 offers some heuristics to identify incorrect bounces based on the local part (left hand side before the "@") of the address in a non-empty Return-Path, and it even defines a mail header field, Auto-Submitted, to identify auto replies. But the mail header is a ...
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Received: when an SMTP server accepts a message it inserts this trace record at the top of the header (last to first). Return-Path: when the delivery SMTP server makes the final delivery of a message, it inserts this field at the top of the header. A mail user agent (MUA) knows the outgoing mail SMTP server from its configuration.
Return Path Partners with Symantec to Fight Phishing Symantec's Data Strengthens Return Path's Anti-Phishing Solutions to Preserve Trust in the Email Ecosystem NEW YORK & MOUNTAIN VIEW, Calif ...