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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.
The Cache-Control: no-cache HTTP/1.1 header field is also intended for use in requests made by the client. It is a means for the browser to tell the server and any intermediate caches that it wants a fresh version of the resource. The Pragma: no-cache header field, defined in the HTTP/1.0 spec, has the same purpose. It, however, is only defined ...
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 ...
In this example, 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@other.example>
An email’s full headers include info about how it was routed and delivered and the true sender of the email. View the full headers to find out where an email was delayed or if the real sender disguised their email address. View the full header of an email. 1. Click an email to open it. 2. Click the More drop-down in the top menu. 3.
Variable envelope return path (VERP) is a technique used by some electronic mailing list software to enable automatic detection and removal of undeliverable e-mail addresses. It works by using a different return path (also called "envelope sender") for each recipient of a message.
Ad-Free AOL Mail is only available when viewing email on the web from a computer or mobile device. If you access AOL Mail from the AOL Desktop software or mobile app, you will continue to see paid ...