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Diffstat (limited to 'mail/spamdyke/DESCR')
| -rw-r--r-- | mail/spamdyke/DESCR | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/mail/spamdyke/DESCR b/mail/spamdyke/DESCR new file mode 100644 index 00000000000..f3bab14d082 --- /dev/null +++ b/mail/spamdyke/DESCR @@ -0,0 +1,17 @@ +spamdyke monitors incoming traffic, acting as a middleman between +qmail and the remote server. It catches the sender and recipient +addresses as they go by and logs them to syslog. If it sees something +it doesn't like (e.g. a blacklisted sender), it cuts the connection, +closes qmail and fakes the rest of the SMTP transaction with the +remote server. qmail thinks the remote server disconnected normally. +The remote server thinks qmail is rejecting the message. It's the +best of both worlds. + +spamdyke can optionally reject the connection if the remote server's +reverse DNS entry does not exist, does not resolve, contains its +IP address and either contains a prohibited keyword (like "dynamic") +or ends in a country code; if the IP address, reverse DNS entry, +or envelope sender is listed in a blacklist; or if data is sent +before the SMTP greeting banner is displayed. spamdyke can also +limit recipients per connection, greylist for some or all domains, +and close connections that go idle or take too long. |