Good day to all! So I have just had another look at my e-mail server regarding my situation, and I found something very odd. Postfix seems to be unable to send e-mail to IPv4 addresses, but it can send e-mail to IPv6 addresses. This is odd because Postfix is configured to use an IPv4 interface only, and its even more odd that the interface is a PPTP VPN tunnel which PPTP doesn't even support IPv6! What the ?!?!?!?! 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
I have also attached my 'main.cf' configuration file. Sincerely, Kolusion
main.cf
Description: Binary data
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