1# SMTP - Simple Mail Transfer Protocol - RFC 2821 (See also RFC 1869) 2# Pattern attributes: great notsofast fast 3# Protocol groups: mail ietf_internet_standard 4# Wiki: http://www.protocolinfo.org/wiki/SMTP 5# 6# usually runs on port 25 7# 8# This pattern has been tested and is believed to work well. 9 10# As usual, no text is required after "220", but all known servers have some 11# there. It (almost?) always has string "smtp" in it. The RFC examples 12# does not, so we match those too, just in case anyone has copied them 13# literally. 14# 15# Some examples: 16# 220 mail.stalker.com ESMTP CommuniGate Pro 4.1.3 17# 220 mail.vieodata.com ESMTP Merak 6.1.0; Mon, 15 Sep 2003 13:48:11 -0400 18# 220 mail.ut.caldera.com ESMTP 19# 220 persephone.pmail.gen.nz ESMTP server ready. 20# 220 smtp1.superb.net ESMTP 21# 220 mail.kerio.com Kerio MailServer 5.6.7 ESMTP ready 22# 220-mail.deerfield.com ESMTP VisNetic.MailServer.v6.0.9.0; Mon, 15 Sep 2003 13:4 23# 220 altn.com ESMTP MDaemon 6.8.5; Mon, 15 Sep 2003 12:46:42 -0500 24# 220 X1 NT-ESMTP Server ipsmin0165atl2.interland.net (IMail 6.06 73062-3) 25# 220 mail.icewarp.com ESMTP Merak 6.1.1; Mon, 15 Sep 2003 19:43:23 +0200 26# 220-mail.email-scan.com ESMTP 27# 220 smaug.dreamhost.com ESMTP 28# 220 kona.carleton.edu -- Server ESMTP (PMDF V6.2#30648) 29# 220 letra.reed.edu ESMTP Sendmail 8.12.9/8.12.9; Mon, 15 Sep 2003 10:35:57 -0700 (PDT) 30# 220-swan.mail.pas.earthlink.net ESMTP Exim 3.33 #1 Mon, 15 Sep 2003 10:32:15 -0700 31# 32# RFC examples: 33# 220 xyz.com Simple Mail Transfer Service Ready (RFC example) 34# 220 dbc.mtview.ca.us SMTP service ready 35 36smtp 37^220[\x09-\x0d -~]* (e?smtp|simple mail) 38userspace pattern=^220[\x09-\x0d -~]* (E?SMTP|[Ss]imple [Mm]ail) 39userspace flags=REG_NOSUB REG_EXTENDED 40