On 2014-02-17 22:03, Dian Arya wrote: > Mohon bantuannya, kami mengalami permasalan dimana kami tidak dapat > kirim email ke suato domain (hotmail.com) dimana terdapat notifikasi > "Socket connection closed by the other side (how rude!)", Mohon > pencerahannya
> Mon 2014-02-17 15:44:15: [579487] <-- 421 RP-001 (COL0-MC1-F38) > Unfortunately, some messages from 124.81.71.3 weren't sent. Please try > again. We have limits for how many messages can be sent per hour and > per day. You can also refer to > http://mail.live.com/mail/troubleshooting.aspx Server hotmail.com complaint karena server Anda terlalu banyak open session connection (yang belum selesai). MDaemon run dibelakang firewall ya sehingga transfer data ke internet lambat dan session connection tidak juga selesai? Batasi session connection per IP basis atau relay saja melalui smarthost, karena PTR record IP 24.81.71.3 dobel akan berdampak kadang bisa match dan saat lain tidak match (round robin effect) http://mdaemon.dutaint.co.id/13.6.1/default-domain-and-servers_sessions.htm Maximum simultaneous connections to any single IP =10 (kalau dibelakang firewall mungkin lebih baik dibawah itu). $ host 124.81.71.3 3.71.81.124.in-addr.arpa domain name pointer mail.gmf-aeroasia.co.id. 3.71.81.124.in-addr.arpa domain name pointer mail.gmf.co.id. PTR record itu harus tunggal (unique, single), rasanya saya pernah kasih tahu deh http://www.mail-archive.com/[email protected]/msg29848.html Ini penjelasan lebih rinci http://www.mail-archive.com/[email protected]/msg29132.html --- Berbeda dengan A record atau MX record, khusus PTR record yang valid harus unique, walau di DNS server (secara teknis) bisa dibuatkan lebih dari satu. Jadi sekalipun di MDaemon bisa hosting multiple domain di single IP, akan tetapi khusus FQDN host semuanya harus punya FQDN yang seragam (sama), bukan punya PTR record yang banyak. Hal ini berkaitan cara DNS resolver, jika ada banyak PTR record maka akan berlaku resolve secara bergantian (Round Robin) sehingga terkadang PTR recordnya valid dan terkadang tidak valid. Jika kita tidak bisa mendapatkan PTR record dari ISP, misalkan karena pakai dynamic IP, maka gunakan RelayHost (smarthost) saat sending mail ke internet. --- http://mdaemon.dutaint.co.id/13.6.1/default-domain-and-servers_delivery.htm [x] Send all email directly first, and then to smart hosts if there are problems Default smart host: smtp.indosat.net.id http://en.wikipedia.org/wiki/Reverse_DNS_lookup --- Multiple pointer records While most rDNS entries only have one PTR record, DNS does not restrict the number. However, having multiple PTR records for the same IP address is generally not recommended, unless there is a specific need. For example, if a web server supports many virtual hosts, there may be one PTR record for each host and some versions of name server software will allocate this automatically. Multiple PTR records can cause problems, however, including triggering bugs in programs that only expect single PTR records.[1] --- -- syafril ------- Syafril Hermansyah Running MDaemon 14.0 Beta B, SP 4.1.5 It's hard to drive at the limit, but it's harder to know where the limits are. -- Stirling Moss -- --[MDaemon-L]------------------------------------------------ Milis ini untuk Diskusi antar pengguna MDaemon Mail Server. Netiket: http://www.netmeister.org/news/learn2quote Arsip: http://mdaemon-l.dutaint.com Dokumentasi : http://mdaemon.dutaint.co.id Henti Langgan: Kirim mail ke MDaemon-L-unsubscribe [at] dutaint.com Berlangganan: kirim mail ke MDaemon-L-subscribe [at] dutaint.com Versi terakhir MD 13.6.2, SP 4.1.5, BES 2.0.2, OC 2.3.3, SG 2.1.2, PP 2.0.1
