Qmail Patch Set

Features of spamcontrol:

1. Email Forwarding | relaying:
   • Relaymailfrom support ("mail from :")
2. Unified Standard bad * filter | unified bad * filters:
   • Wildcard HELO/EHLO greeting Filter
   • Wildcard sender Filter
   • Wildcard recipient Filter
3. Mime Type Filter | MIME type filter:
   • Signaturs of Base 64 encoded MIME types can be added on-the-fly in a CDB usingQmail-newbmt
   • The filter is triggered my means of the Environment variabel $ badmimetype
4. Dns mx record check | dns mx lookups:
   • DNS lookup for SMTP sender envelope address (mfdnscheck)
     Includes option to Remove trailing Blanks
   • DNS lookup for hostname in smtp helo/EHLO greeting (helodnscheck)
5. Nasty stuff:
   • SMTP session may be closed in case ofFilterCondition!
   • Blackholed sender for the notorious
6. (E) SMTP extension | (e) SMTP extensions:
   • SMTP size extension [RFC 1870]
   • E (SMTP) authentication [RFC 2554] improved (e) SMTP authentication!
7. Recipient whitelising extension:
   • Accept e-mails on a (case-insensitive)Per-user bases, InsteadPer-Domain
   • Multiple User data-bases inCDBFormat
   • User data-baseFastforwardCompatible or to be constructed on-the-flyQmail-recipients
8. Controlling:
   • Limitation for the number of "rcpt to:'s" per SMTP session
   • Split horizon evaluationBadheloAndBadmailfromFilters (depending on $ relayclient)
   • Tarpitting patches that limit the number of mails sent by Local Authenticated Users at a time
   • Reverse split horizon Mechanic:
     Anti-spoofing for "mail from:" addresses for $ relayclients (in particle if SMTP authenticated)
     Very useful to identify backdoor/Trojan infected hosts!
   • Enforcement for SMTP authentication for particle senders!
   • Enforcement of brackets for SMTP addresses
9. Bounce email control | controlling bounces:
   • Nullsender single recipient Enforcement
   • Limit size of Bounces
   • Russel Nelson'sDouble bounce trim
10. Extensible logging (SploggerOrMultilog):
    • Accepted and rejected SMTP sessions
    • Accepted and rejected SMTP authentication attempts
11. Performance enhancements (experimental ):
    • Bruce Guenter'sBigtodoPatch
    • Andre oppermann'sRunoncePatch
    • Larger input buffer for reading Control Files
12. Some common patches | recommended patches:
    • Moreipme patch. That is, 0.0.0.0 patch
    • GCC 3.2/glibc <errno. h> macro
    • Qmail-LocalTab patch
    • Bruce Guenter'sQueue_extraPatch. That is, qmailqueue patch
    • SendmailPatches
    • Qmail-smtpdGiant received-Header Vulnerability patch