Hai milisers,
Linuxbox ini berfungsi sebagai mail server lokal dan internet (pakai dialup). SMTP gateway atau relay host memakai smtp.relayhost.com. Saya mau tunning postfix sedikit agar saat konek ke internet dg dialup, email segera dikirimkan ke relayhost tanpa perlu postfix lookup ke dns. Hal ini bisa dilakukan kalau saya masukkan ip address di bagian ini: /etc/postfix/main.cf: myhostname = server.megaplasma.com mydomain = megaplasma.com relayhost = [201.2.3.4] /etc/postfix/sasl_passwd: 201.2.3.4 username:password Anehnya setelah itu email gagal dikirimkan pesan errornya sbb: Feb 21 13:35:44 server postfix/qmgr[4989]: 99775A7BB: from=<[EMAIL PROTECTED]>, size=311, nrcpt=1 (queue active) Feb 21 13:35:44 server postfix/qmgr[4989]: 99775A7BB: to=<[EMAIL PROTECTED]>, relay=none, delay=0, status=deferred (delivery temporarily suspended: deferred transport) Kemudian saya lakukan: /usr/sbin/sendmail -q untuk kirim email yg diantrikan. Feb 21 13:35:54 server postfix/qmgr[4989]: 99775A7BB: from=<[EMAIL PROTECTED]>, size=311, nrcpt=1 (queue active) Feb 21 13:35:55 server postfix/smtp[5204]: warning: smtp.relayhost.com[201.2.3.4] offered AUTH option multiple times Feb 21 13:36:00 server postfix/smtp[5204]: 99775A7BB: to=<[EMAIL PROTECTED]>, relay=smtp.relayhost.com[201.2.3.4], delay=16, status=bounced (host smtp.relayhost.com[201.2.3.4] said: 501 <megaplasma.com> is invalid or DNS says does not exist (in reply to MAIL FROM command)) Biasanya kalau berhasil kirim pesannya spt ini: Feb 21 13:37:34 server postfix/qmgr[5302]: C0261A7BB: from=<[EMAIL PROTECTED]>, size=311, nrcpt=1 (queue active) Feb 21 13:37:34 server postfix/qmgr[5302]: C0261A7BB: to=<[EMAIL PROTECTED]>, relay=none, delay=0, status=deferred (delivery temporarily suspended: deferred transport) Feb 21 13:37:37 server postfix/qmgr[5302]: C0261A7BB: from=<[EMAIL PROTECTED]>, size=311, nrcpt=1 (queue active) Feb 21 13:37:40 server postfix/smtp[5331]: warning: smtp.relayhost.com[201.2.3.4] offered AUTH option multiple times Feb 21 13:37:41 server postfix/smtp[5331]: C0261A7BB: to=<[EMAIL PROTECTED]>, relay=smtp.relayhost.com[201.2.3.4], delay=7, status=sent (250 Ok, message saved <Message-ID: <[EMAIL PROTECTED]>>) Feb 21 13:37:41 server postfix/qmgr[5302]: C0261A7BB: removed -- Terimakasih sebelumnya dan sesudahnya. Salam, ~yudi
