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  2. Bounce message - Wikipedia

    en.wikipedia.org/wiki/Bounce_message

    When sending an e-mail, the service from which the e-mail is sent may be unable to reach the destination address. In such case, the sender would receive a bounce message from their own mail server. Common causes for mail servers being unable to reach a destination: Unable to resolve the destination address. For example, if the domain name does ...

  3. Backscatter (email) - Wikipedia

    en.wikipedia.org/wiki/Backscatter_(email)

    Backscatter (also known as outscatter, misdirected bounces, blowback or collateral spam) is incorrectly automated bounce messages sent by mail servers, typically as a side effect of incoming spam. Recipients of such messages see them as a form of unsolicited bulk email or spam, because they were not solicited by the recipients.

  4. Bounce Address Tag Validation - Wikipedia

    en.wikipedia.org/wiki/Bounce_Address_Tag_Validation

    In computing, Bounce Address Tag Validation (BATV) is a method, defined in an Internet Draft, for determining whether the bounce address specified in an E-mail message is valid. It is designed to reject backscatter , that is, bounce messages to forged return addresses.

  5. Why did I receive an email from MAILER-DAEMON? - AOL Help

    help.aol.com/articles/what-is-a-mailer-daemon...

    When you get a message from a "MAILER-DAEMON" or a "Mail Delivery Subsystem" with a subject similar to "Failed Delivery," this means that an email you sent was undeliverable and has been bounced back to you. These messages are sent automatically and often include the reason for the delivery failure.

  6. Bounce address - Wikipedia

    en.wikipedia.org/wiki/Bounce_address

    A bounce address is an email address to which bounce messages are delivered. There are many variants of the name, none of them used universally, including return path, reverse path, envelope from, envelope sender, MAIL FROM, 5321-FROM, return address, From_, Errors-to, etc. It is not uncommon for a single document to use several of these names.

  7. Greylisting (email) - Wikipedia

    en.wikipedia.org/wiki/Greylisting_(email)

    Greylisting is a method of defending e-mail users against spam. A mail transfer agent (MTA) using greylisting will "temporarily reject" any email from a sender it does not recognize. If the mail is legitimate, the originating server will try again after a delay, and if sufficient time has elapsed, the email will be accepted.

  8. History of email - Wikipedia

    en.wikipedia.org/wiki/History_of_email

    The history of email entails an evolving set of technologies and standards that culminated in the email systems in use today. [1]Computer-based messaging between users of the same system became possible following the advent of time-sharing in the early 1960s, with a notable implementation by MIT's CTSS project in 1965.

  9. History of email spam - Wikipedia

    en.wikipedia.org/wiki/History_of_email_spam

    Many network managers wanted to use the RBL to block unwanted email. Thus, Rand and Vixie created a DNS-based distribution scheme which quickly became popular. [11] Spam was already becoming a serious concern, leading in late 1997 to the MAPS, which was "blackhole list" to allow mail servers to block mail coming from spam sources.