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185 results for “campaign monitor”

• Blocklists & Spam Monitoring

  SEM Blacklists: Email Blocklist Removal Guide

  Sender Score reputation network from Validity. Assigns IPs a reputation score (0-100) rather than a binary listed/not-listed verdict. Used by major ESPs and filtering systems.

  smtpedia.com/sem-blacklists-removal
• Blocklists & Spam Monitoring

  MSRBL: Email Blocklist Removal Guide

  Formerly listed phishing and spam sources. Discontinued around 2013. DNS queries return NXDOMAIN. Historical reference only.

  smtpedia.com/msrbl-removal
• Blocklists & Spam Monitoring

  Hostkarma Black: Email Blocklist Removal Guide

  Karma-based IP reputation system from JunkEmailFilter. Positive karma for good senders (whitelist), negative karma for spam sources (blacklist). Also operates a yellow zone for unknown senders.

  smtpedia.com/hostkarma-black-removal
• Blocklists & Spam Monitoring

  HIL Blacklist: Email Blocklist Removal Guide

  Formerly a sender certification and reputation list from Habeas (acquired by Return Path). Discontinued when Return Path moved to different certification models.

  smtpedia.com/hil-blacklist-removal
• Blocklists & Spam Monitoring

  NETHER Blacklists: Email Blocklist Removal Guide

  Formerly listed open relays (RELAYS zone) and uncertain mail sources (UNSURE zone). Has not been actively maintained since the mid-2010s. Still queried by some legacy SpamAssassin configurations.

  smtpedia.com/nether-blacklist-removal
• Blocklists & Spam Monitoring

  Suomispam Reputation: Email Blocklist Removal Guide

  Finnish blocklist covering spam sources identified via local trap networks. Primarily used by Finnish ISPs and regional mail infrastructure.

  smtpedia.com/suomispam-reputation-removal
• RFCs

  RFC 4021: Registration of Mail and MIME Header Fields

  Registers the full set of standard email header fields with IANA, providing a canonical reference.

  smtpedia.com/rfc-4021
• RFCs

  RFC 5965: An Extensible Format for Email Feedback Reports

  Defines the ARF (Abuse Reporting Format) used in Feedback Loop (FBL) complaint reports from mailbox providers.

  smtpedia.com/rfc-5965
• RFCs

  RFC 2142: Mailbox Names for Common Services, Roles and Functions

  Defines standard role mailboxes every domain should maintain: postmaster@, abuse@, hostmaster@, etc.

  smtpedia.com/rfc-2142
• RFCs

  RFC 7505: A Null MX No Service Resource Record for Domains That Accept No Mail

  Defines the Null MX (0 .) record that explicitly signals a domain accepts no incoming mail, preventing delivery loops.

  smtpedia.com/rfc-7505