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  2. DMARC - Wikipedia

    en.wikipedia.org/wiki/DMARC

    A draft DMARC specification has been maintained since 30 January 2012. [28] In October 2013, GNU Mailman 2.1.16 was released with options to handle posters from a domain with the DMARC policy of p=reject. [22]

  3. Authenticated Received Chain - Wikipedia

    en.wikipedia.org/wiki/Authenticated_Received_Chain

    DMARC allows a sender's domain to indicate that their emails are protected by SPF and/or DKIM, and tells a receiving service what to do if neither of those authentication methods passes - such as to reject the message. However, a strict DMARC policy may block legitimate emails sent through a mailing list or forwarder, as the DKIM signature will ...

  4. DomainKeys Identified Mail - Wikipedia

    en.wikipedia.org/wiki/DomainKeys_Identified_Mail

    DMARC provides the ability for an organisation to publish a policy that specifies which mechanism (DKIM, SPF, or both) is employed when sending email from that domain; how to check the From: field presented to end users; how the receiver should deal with failures—and a reporting mechanism for actions performed under those policies. [13]

  5. How email spoofing can affect AOL Mail

    help.aol.com/articles/what-is-email-spoofing-and...

    AOL takes your security very seriously, and as such, we stay ahead of this problem by updating our DMARC policy to tell other compliant providers like Yahoo, Gmail, and Outlook to reject mail from AOL address sent from non-AOL servers.

  6. Sender Rewriting Scheme - Wikipedia

    en.wikipedia.org/wiki/Sender_Rewriting_Scheme

    SRS is a form of variable envelope return path (VERP) inasmuch as it encodes the original envelope sender in the local part of the rewritten address. [2] Consider example.com forwarding a message originally destined to bob@example.com to his new address <bob@example.net>:

  7. Why can't I send mail to AOL Mail users? - AOL Help

    help.aol.com/articles/aol-mail-addresses-are-not...

    Find out more about why your messages to AOL members keep getting rejected.

  8. Fix problems sending AOL Mail

    help.aol.com/articles/aol-mail-troubleshooting

    Enable Rich Text/HTML: If your Mail settings don't have Rich Text or HTML enabled, you could have problems with viewing images in forwarded emails. These settings can be enabled from the Mail Settings page. Send image as an attachment:

  9. Sender Policy Framework - Wikipedia

    en.wikipedia.org/wiki/Sender_Policy_Framework

    Sender Policy Framework (SPF) is an email authentication method that ensures the sending mail server is authorized to originate mail from the email sender's domain. [1] [2] This authentication only applies to the email sender listed in the "envelope from" field during the initial SMTP connection.