maaf pak ada yang kurang infonya, atasan saya menggunakan email
char...@peaksecurities.com

dan log nya sbb

Tue 2011-12-20 14:03:01: [121428:3] <-- MAIL FROM:<
char...@peaksecurities.com> SIZE=11185
Tue 2011-12-20 14:03:01: [121428:3] Performing PTR lookup
(196.40.115.50.IN-ADDR.ARPA)
Tue 2011-12-20 14:03:01: [121428:3] *  D=196.40.115.50.IN-ADDR.ARPA
TTL=(1428) PTR=[50-115-40-196.static.webnx.com]
Tue 2011-12-20 14:03:01: [121428:3] *  Gathering A records...
Tue 2011-12-20 14:03:02: [121428:3] *  No A records found
Tue 2011-12-20 14:03:02: [121428:3] *  MDaemon configured to drop
connection on PTR record miss-match
Tue 2011-12-20 14:03:02: [121428:3] ---- End PTR results
Tue 2011-12-20 14:03:02: [121428:3] --> 501 Domain must resolve
Tue 2011-12-20 14:03:02: [121428:3] SMTP session terminated (Bytes in/out:
75/237)

terima kasih

best regards
yudis

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