Грейлистинг - зло! На многих отправляющих серверах время повтора отправки сообщения из очереди больше получаса. В таких случаях грейлистинг порождает очень большие задержки писем, что неприемлимо во многих конторах, в частности у меня. Очень хорошо работает такая связка: sendmail + smf-spf + smf-sav + spamassassin (подкручены score, ниже конфиг) + один блеклист zen.spamhaus.org.Конфиг баллов для спамассасина:
required_score 5.0
score RDNS_DYNAMIC 5
score SPF_FAIL 5
score SPF_SOFTFAIL 3
score HTML_MESSAGE 0.1
score RAZOR2_CHECK 5
score URIBL_BLACK 5
score ALL_TRUSTED -100
#score HTML_IMAGE_RATIO_02 5
#score HTML_IMAGE_RATIO_04 4.9
#score HTML_IMAGE_RATIO_06 4.9
#score HTML_IMAGE_RATIO_08 4.9
score RCVD_NUMERIC_HELO 4.8
score DOS_OE_TO_MX 5
score JM_REACTOR_MAILER 5
score HTML_FONT_SIZE_HUGE 4.9
score MR_NOT_ATTRIBUTED_IP 0
score MR_ASIA_7BITS 0
score RCVD_IN_PBL 0
score RCVD_IN_SBL 0
score RCVD_IN_XBL 0
#score RCVD_IN_BL_SPAMCOP_NET 5
#score RCVD_IN_NJABL_PROXY 5
score RCVD_IN_CBL 2.5
#score NO_RDNS2 2.5
score RDNS_NONE 2.5
score BAYES_99 5.0
score USER_IN_WHITELIST -100
score RCVD_IN_SORBS_HTTP 4.9
score RCVD_IN_SORBS_SOCKS 4.9
score RCVD_IN_SORBS_MISC 4.9
score RCVD_IN_SORBS_SMTP 4.9
score RCVD_IN_SORBS_WEB 4.9
score RCVD_IN_SORBS_BLOCK 4.9
score RCVD_IN_SORBS_ZOMBIE 4.9
score RCVD_IN_SORBS_DUL 4.9
score DNS_FROM_RFC_BOGUSMX 4
score FORGED_YAHOO_RCVD 5
score URIBL_SB 4.9
score URIBL_SC_SURBL 4.9
score HELO_DYNAMIC_IPADDR 4.9
score HELO_DYNAMIC_IPADDR2 4.9
score HELO_DYNAMIC_DHCP 4.9
score XMAILER_MIMEOLE_OL_015D5 5.0
score XMAILER_MIMEOLE_OL_07794 5.0
score XMAILER_MIMEOLE_OL_09BB4 5.0
score XMAILER_MIMEOLE_OL_1ECD5 5.0
score XMAILER_MIMEOLE_OL_20C99 5.0
score XMAILER_MIMEOLE_OL_22B61 5.0
score XMAILER_MIMEOLE_OL_25340 5.0
score XMAILER_MIMEOLE_OL_32D97 5.0
score XMAILER_MIMEOLE_OL_3857F 5.0
score XMAILER_MIMEOLE_OL_3AC1D 5.0
score XMAILER_MIMEOLE_OL_3D61D 5.0
score XMAILER_MIMEOLE_OL_465CD 5.0
score XMAILER_MIMEOLE_OL_4B815 5.0
score XMAILER_MIMEOLE_OL_4BF4C 5.0
score XMAILER_MIMEOLE_OL_4EEDB 5.0
score XMAILER_MIMEOLE_OL_4F240 5.0
score XMAILER_MIMEOLE_OL_58CB5 5.0
score XMAILER_MIMEOLE_OL_5B79A 5.0
score XMAILER_MIMEOLE_OL_6554A 5.0
score XMAILER_MIMEOLE_OL_72641 5.0
score XMAILER_MIMEOLE_OL_7533E 5.0
score XMAILER_MIMEOLE_OL_812FF 5.0
score XMAILER_MIMEOLE_OL_83BF7 5.0
score XMAILER_MIMEOLE_OL_8627E 5.0
score XMAILER_MIMEOLE_OL_8E893 5.0
score XMAILER_MIMEOLE_OL_91287 5.0
score XMAILER_MIMEOLE_OL_9B90B 5.0
score XMAILER_MIMEOLE_OL_A50F8 5.0
score XMAILER_MIMEOLE_OL_A842E 5.0
score XMAILER_MIMEOLE_OL_ADFF7 5.0
score XMAILER_MIMEOLE_OL_B30D1 5.0
score XMAILER_MIMEOLE_OL_B4B40 5.0
score XMAILER_MIMEOLE_OL_B9B11 5.0
score XMAILER_MIMEOLE_OL_BC7E6 5.0
score XMAILER_MIMEOLE_OL_C65FA 5.0
score XMAILER_MIMEOLE_OL_C9068 5.0
score XMAILER_MIMEOLE_OL_CAC8F 5.0
score XMAILER_MIMEOLE_OL_CF0C0 5.0
score XMAILER_MIMEOLE_OL_EF20B 5.0
score XMAILER_MIMEOLE_OL_EF222 5.0
score XMAILER_MIMEOLE_OL_F3B05 5.0
score XMAILER_MIMEOLE_OL_F475E 5.0
score XMAILER_MIMEOLE_OL_F6D01 5.0
score XMAILER_MIMEOLE_OL_FF5C8 5.0
score SPAMMY_XMAILER 5.0
score DATE_IN_PAST_03_06 4.2
score DATE_IN_PAST_06_12 4.4
score DATE_IN_PAST_12_24 4.6
score DATE_IN_PAST_24_48 4.8
score DATE_IN_PAST_96_XX 5
score DATE_IN_FUTURE_03_06 4.0
score DATE_IN_FUTURE_06_12 4.2
score DATE_IN_FUTURE_12_24 4.4
score DATE_IN_FUTURE_24_48 4.6
score DATE_IN_FUTURE_48_96 4.8
score DATE_IN_FUTURE_96_XX 5
