On Thu, Feb 12, 2004 at 12:18:35AM +0700, I Gede Wijaya S wrote:
remote.some.domain said: 559 sorry, your HELO/EHLO greeting must
resolve (#5.7.1) (in reply to RCPT TO command).
Email server di balik firewall, karena hanya firewall yang punya
ip publik. Sebenarnya bagaimana sih mekanisme agar "server
dalam" berhasil melalui pengecekan HELO/EHLO? apakah dengan
menambahkan "IN MX server dalam" pada DNS?
% postconf -e "smtp_helo_name = your.fqdn.hostname" % postfix reload
jangan lupa set 'proxy_interfaces' di main.cf juga, kalau dns mesin-mesin di private network sama dengan yang pakai ip public.
pakai DNS juga bisa, asal tidak membingungkan aplikasi yang ada di dalam private network (tergantung skenario).
CMIIW
Kayaknya dns musti diset, kl kuatir aplikasi bingung, dns-nya bikin 2 view internal dan external
pertama set dulu
smtp_helo_name = youremailhostname.domain.name
trus dns server : named.conf :
acl internal {
ip.range.private/subnet;
};view internal {
match-client { internal; };zone "domain.name" {
file domain.name.internal.db;
};zone "ip.private.in-addr.arpa" {
file ip.private.db;
}zone lain-lain .... };
view external {
match-client { any; };zone "domain.name" {
file domain.name.external.db;
};zone "ip.public.in-addr.arpa" {
file ip.public.db;
}zone lain-lain .... };
file domain.name.internal.db : youremailhostname A ip.private
file ip.private.db : ip.private PTR youremailhostname.domain.name.
file domain.name.external.db : youremailhostname A ip.public
file ip.public.db : ip.public PTR youremailhostname.domain.name.
ip.public disini ip public yg nge-NAT Sorry kl terlalu verbose, barangkali berguna buat yg laen :)
Anang
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