Similar to Messaging_Application_Programming_Interface

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  Biff

  Biff (Unix)
  
• 

  Cock.li

  
• 

  Distributed Sender Blackhole List

  Distributed Sender Blackhole List
  
• 

  GNU Mailman

  GNU Mailman
  
• 

  Google グループ

  Google Groups
  
• 

  HTML電子メール

  HTML email
  
• 

  .mail

  .mail
  
• 

  Maildir

  Maildir
  
• 

  Mailto

  Mailto
  
• 

  Mbox

  Mbox
  
• 

  MDaemon

  MDaemon
  
• 

  MXレコード

  MX record
  
• 

  Outbound Port 25 Blocking

  
• 

  POPFile

  POPFile
  
• 

  Re:

  
• 

  Riseup

  Riseup
  
• 

  S/MIME

  S/MIME
  
• 

  Sieve

  Sieve (mail filtering language)
  
• 

  Sympa

  Sympa
  
• 

  Tuta

  Tuta (email)
  
• 

  VCard

  VCard
  
• 

  X-Face

  X-Face
  
• 

  X.400

  X.400
  
• 

  Iモードメール

  
• 

  I-revo

  
• 

  Eml形式

  .eml
  
• 

  Ezmlm

  Ezmlm
  
• 

  Inter7