Hax

Email

"Making IT happen on the
Information Superhighway"

Backing Up Emails

• Applications
• Tutorials

Email Archiving

• Linux Journal Article: Offline IMAP
• Mail Navigator

Email Mining

• Deep Email Miner
• fcEmail2MySQL

Mail Clients

• Alpine
• askSam
• Barca
• Choicemail
• Eudora
• Evolution
• Incredimail
• Inscribe Email
• JB Mail
• Kmail
• Mail Navigator
• Mulberry
• Mutt

• Outlook
• Outlook Express
• Pegasus
• Pine
• Poco Mail
• Seamonkey Suite
• SquirrelMail
• SugarCRM
• Sylpheed Claws
• The Bat
• Thunderbird
• World Client
• Yahoo Pops

Mail Protocols

• IMAP
  Internet Message Access Protocol
• IMAP4
  Internet Message Access Protocol 4
• MIME
  Multipurpose Internet Mail Extensions

• NNTP
  Network News Transfer Protocol
• POP3
  Post Office Protocol
• SMTP
  Simple Mail Transfer Protocol

Mail Server

• CommuniGate
• Exchange
• Hmail
• Internet Anywhere Email Server
• KerioMailServer
• Mdaemon
• Merak Mail Server
• Postfix

• Procmail
• Scalix
• Sendmail
• Squirrelmail
• VPOP3 Email Server
• Xmail
• Zimbra

Mail Server Error Codes

• Understanding SMTP Error Codes
• All SMTP codes consist of three digits
• First digit tells you if command was accepted an&d processed
• 421 Service not available, closing transmission channel (This may be a reply to any command if the service knows it must shut down)
• 450 Requested mail action not taken: mailbox unavailable (E.g., mailbox busy)
• 451 Requested action aborted: local error in processing
• 452 Requested action not taken: insufficient system storage
• 500 Syntax error, command unrecognized (This may include errors such as command line too long)
• 501 Syntax error in parameters or arguments
• 502 Command not implemented
• 503 Bad sequence of commands
• 504 Command parameter not implemented

• 550 Requested action not taken: mailbox unavailable (E.g., mailbox not found, no access)
• 551 User not local; please try
• 552 Requested mail action aborted: exceeded storage allocation
• 553 Requested action not taken: mailbox name not allowed (E.g., mailbox syntax incorrect)
• 554 Transaction failed
• 211 System status, or system help reply
• 214 Help message (Information on how to use the receiver or the meaning of a particular non-standard command; this reply is useful
  only to the human user)
• 220 Service ready
• 221 Service closing transmission channel
• 250 Requested mail action okay, completed
• 251 User not local; will forward to
• 354 Start mail input; end with . (a dot)

Mail Redirection/Forwarding

• Spam Gourmet

Open Relay

• Abuse Net
• DNS Stuff
• MX Toolbox Open Relay Tester
• Open Relay Database

• Here's the a test:
  1. lookup the MX record for qwe.com.ty
  2. spoof an smtp session to that server:
  telnet <mx ip> 25
  helo foo.com
  mail from: foo@foo.com
  rcpt to: asd@qwe.com.ty
  quit
  
  If you cannot complete this sequence successfully, therein lies the real problem.
  
  As to why is there this problem with just this address...I don't think that many people are doing bounce testing, so the majority of the time you can expect no problems.

Spam Filters

• Applications
• Blacklists

Troubleshooting with Telnet

• telnet 127.0.0.1 25
  220 mail.***********.com ESMTP Postfix
• telnet 127.0.0.1 110
  +OK dovecot ready.
• telnet 127.0.0.1 143
  +OK dovecot ready.

Tutorials

• ASCII Art to Cloak Email Address
• Convert Mail to Other Format
• Decoy Email Addresses to Train Bayesian Spam Filters
• DVD Archive
• Email List Poisoning

• Email Obfuscator
• Forward to Yahoo or Gmail
• Hidden Fake Email Addresses in White
• Pine Tutorials
• Spam Traps
• Winmail.dat tutorial article
• Winmail.dat utility decoder

• Trieste

• Yahoo! Mail SMTP server requires authentication
• If you have set the "Outgoing Mail (SMTP) Server" field in Yahoo! Mail to smtp.mail.yahoo.com, have set your client to use authenticated SMTP, and find that you can receive but cannot send messages, then you may need to use port 587 when sending via Yahoo!'s SMTP server.
• Incoming mail server (POP3):
  pop.mail.yahoo.com
• Do not check the box next to "Log on using Secure Password Authentication (SPA)."

• Gmail
• In your email client software, under Outgoing mail, set the SMTP server to smtp.google.com.
  # Set the your username is yourgooglemailname@gmail.com and make sure "Use username and password" is checked.
  # Also check off "TLS" under "Use secure connection."
• # Enter your full Gmail email address (username@gmail.com) in the 'Email address:' field, and click 'Next.'
  # Enter 'pop.gmail.com' in the 'Incoming mail (POP3, IMAP or HTTP) server:' field. Enter 'smtp.gmail.com' in the 'Outgoing mail (SMTP) server:' field.
  # Click 'Next.'
  # Enter your Gmail username (including '@gmail.com') in the 'Account name:' field. Enter your Gmail password in the 'Password:' field, and click 'Next.' 
• # Check the box next to 'This server requires a secure connection (SSL)' under 'Outgoing Mail (SMTP).'
  # Enter '465' in the 'Outgoing mail (SMTP):' field.
  # Check the box next to 'This server requires a secure connection (SSL)' under 'Incoming mail (POP3).' The port will change to 995.
  *The order of 'Outgoing' and 'Incoming' mail server fields varies by version. Make sure you enter the correct information in each field.