On 2015-05-24 Sun 22:19 PM |, Edgar Pettijohn III wrote: > On May 24, 2015, at 9:36 PM, Tuyosi Takesima wrote: > > > it is very sorry that in the previou setting , > > from outside(namely not intra-net) sylpheed can recieve mail but can not > > send mail to [email protected] . > > > > and more > > gmail can not send mail to [email protected] . > > > > The problem most likely is that there is no mx record for a.mydns.jp >
$ dig a.mydns.jp MX +short $ [nothing] $ host a.mydns.jp a.mydns.jp has address 210.197.74.203 a.mydns.jp has address 199.180.255.198 a.mydns.jp has address 107.191.111.61 a.mydns.jp has address 46.19.34.8 a.mydns.jp has address 103.11.143.116 a.mydns.jp has IPv6 address 2a02:2770::21a:4aff:fed5:6421 a.mydns.jp has IPv6 address 2001:df0:24f:21d::116 a.mydns.jp has IPv6 address 2604:180:2::d9db:60d a.mydns.jp has IPv6 address 2605:8900:3000:1001:a:0:4b:2 a.mydns.jp has IPv6 address 2001:278:1033:4::74:203 A record hosts not accepting SMTP access either (fall back when no MX record): $ fgrep mydns.jp /var/log/maillog May 26 14:13:57 teak postfix/smtp[24515]: connect to a.mydns.jp[103.11.143.116]:25: Operation timed out May 26 14:14:27 teak postfix/smtp[24515]: connect to a.mydns.jp[46.19.34.8]:25: Operation timed out May 26 14:14:57 teak postfix/smtp[24515]: connect to a.mydns.jp[107.191.111.61]:25: Operation timed out May 26 14:15:27 teak postfix/smtp[24515]: connect to a.mydns.jp[199.180.255.198]:25: Operation timed out May 26 14:15:57 teak postfix/smtp[24515]: connect to a.mydns.jp[210.197.74.203]:25: Operation timed out May 26 14:15:57 teak postfix/smtp[24515]: 3lwwhl29t3zNr: to=<[email protected]>, relay=none, delay=150, delays=0.23/0.07/150/0, dsn=4.4.1, status=deferred (connect to a.mydns.jp[210.197.74.203]:25: Operation timed out) See: http://www.mydns.jp/?MENU=030 This is very important procedure. Don't forget! RECORDS You have to set DOMAIN INFO. MX ... Mail Exchange, and prio. A ... hostname to IPv4 address.
