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The Anti-Spam SMTP Proxy (ASSP) is an open-source, Perl based, ... Multi-level SPF (Sender Policy Framework) validation and blocking; DKIM signing and validation;
Post Office Protocol (POP3) Internet Message Access Protocol (IMAP) Proprietary systems, such as Microsoft's MAPI; Submission of new email from a mail client is via SMTP, typically on port 587 or 465, and is now generally restricted to servers the user has an account with-such as their ISP.
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.
In order to better enforce anti-spam policies, AOL does not disclose the number of recipients or emails that can be sent at one time. If you've received a notification that a limit has been met, you'll need to wait a set amount of time before you can send more emails. Most sending limit notifications inform you of how long you'll have to wait.
Unsolicited Bulk Email (Spam) AOL protects its users by strictly limiting who can bulk send email to its users. Info about AOL's spam policy, including the ability to report abuse and resources for email senders who are being blocked by AOL, can be found by going to the Postmaster info page .
While 99.9% of spam, malware and phishing emails are being caught by our spam filters, occasionally some can slip through. When this happens, it's very important to mark the email as spam, then our system will learn that messages from a specific sender aren't good and helps us make AOL Mail even better at recognizing future spam emails.
For example, given the example signature above: the d tag gives the author domain to be verified against, example.net ; the s tag the selector, brisbane. The string _domainkey is a fixed part of the specification. This gives the TXT resource record to be looked up as: brisbane._domainkey.example.net
Select the email. Click Spam.; If you're given the option, click Unsubscribe and you will no longer receive messages from the mailing list. If you click the "Mark as Spam" icon, the message will be marked as spam and moved into the spam folder.