"Wrong! The las line in your attachment (very uncomfortable way for sharing information that need quoting), states:
inet_protocols = all You need to have a thorugh read of Postfix documentation." Why is it uncomfortable? No I don't need to read the documentation. There is a problem with Postfix. Postfix is configured to use one interface 192.168.2.2. Why is it not binding to '192.168.2.2'? "You are reaching the IPv6 host *directly*. Many ISPs are now offering IPv6 because of the IPv4 exhaustion and all the problems associated with Carrier Grade NAT." YOU ARE RIGHT! YOU ARE NOT GOING TO BELIEVE THIS! IPv6 port 25 is NOT blocked! I always assume that because my ISP blocks IPv4 port 25, then IPv6 port 25 would be blocked as well! But it is not blocked! Is this customary for ISP's to block IPv4 port 25 but not IPv6 port 25? > Here is an extract of my mail log, demonstrating what I mean: > > Apr 12 23:05:39 generalpurpose postfix/smtpd[3557]: warning: hostname > generalpurpose does not resolve to address 192.168.2.2 > Apr 12 23:05:39 generalpurpose postfix/smtpd[3557]: connect from > unknown[192.168.2.2] > Apr 12 23:05:39 generalpurpose postfix/smtpd[3557]: 2616D80098: > client=unknown[192.168.2.2] > Apr 12 23:05:39 generalpurpose postfix/cleanup[3568]: 2616D80098: > message-id=<13a7d177-u778-3a84-3egd-19283c859...@example.com> > Apr 12 23:05:39 generalpurpose postfix/qmgr[2241]: 2616D80098: > from=<kolus...@example.com>, size=1966, nrcpt=1 (queue active) > Apr 12 23:05:39 generalpurpose postfix/smtpd[3557]: disconnect from > unknown[192.168.2.2] ehlo=2 starttls=1 mail=1 rcpt=1 data=1 quit=1 > commands=7 > Apr 12 23:06:16 generalpurpose postfix/smtp[3569]: connect to > pechora1.icann.org[192.0.33.71]:25: Connection timed out > Apr 12 23:06:42 generalpurpose postfix/smtp[3569]: 2616D80098: > to=<some...@icann.org>, > relay=pechora3.icann.org[2620:0:2830:201::1:73]:25, delay=64, > delays=0.04/0.04/62/1.2, dsn=2.0.0, status=sent (250 2.0.0 Ok: queued > as 0463C7002623) > Apr 12 23:06:42 generalpurpose postfix/qmgr[2241]: 2616D80098: > removed This is clear proof that your exit route over IPv4 has port 25 blocked, at leas to pechora1.icann.org[192.0.33.71] This I already know. This is why I use a VPN (192.168.2.2). My home server connects to my VPS via VPN, and the VPS forwards my traffic and vise versa. "Why don't you simply cut and paste the text, like you have done with the log, reducing the time others have to spend helping you?" Because some people don't like it. Why do you complain a lot? Never mind. So, why is Postfix not using the network interface 192.168.2.2? Thank you. You have lead me to also discovering my MX record is incorrect. I tried to find the IPv6 MX record to test my IPv6 port 25, and learnt there is no such thing. MX records point to a domain, and then it gets either a A or AAAA record. I have my server IP address as the MX record! This will be why some people have problems delivering mail to me! Sincerely, Kolusion _______________________________________________ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
