Ok, sudah saya ikuti dan muncul pesan ini di mail.warn:
Feb 13 11:56:12 localhost postfix/smtpd[26915]: warning: 125.161.168.219: hostname 219.subnet125-161-168.speedy.telkom.net.id verification failed: Name or service not known Feb 13 11:56:14 localhost postfix/smtpd[26915]: warning: SASL authentication problem: unknown password verifier Feb 13 11:56:14 localhost postfix/smtpd[26915]: warning: SASL authentication failure: Password verification failed Feb 13 11:56:14 localhost postfix/smtpd[26915]: warning: unknown[125.161.168.219]: SASL plain authentication failed -- FAQ milis di http://wiki.linux.or.id/FAQ_milis_tanya-jawab Unsubscribe: kirim email ke [EMAIL PROTECTED] Arsip dan info milis selengkapnya di http://linux.or.id/milis