http://www.sixxs.net/wiki/Postfix
"Unfortunately, by default, Postfix assumes you only want to accept IPv4 mail. So if you haven't explicitly enabled it, Postfix assumes the following configuration: On Thu, May 31, 2012 at 11:13 AM, Derek Atkins <[email protected]> wrote: > Hi BLUers, > > I've been working on enabling IPv6 on my personal servers and I ran into > a strange issue last night when I enabled v6 on my mail server. All of > a sudden, all the rest of my local hosts that send daily logwatch emails > are being rejected (at least those that are v6-aware but don't have > public v6 addresses). It's as if the permit_mynetworks isn't working > anymore with link-local addresses. > > The error I get appears as if the smtpd_sender_restrictions is rejecting > the email, but it should accept it based on mynetworks: > > smtpd_sender_restrictions = permit_mynetworks, > permit_tls_clientcerts, > permit_sasl_authenticated, > check_sender_access hash:/etc/postfix/goodsender, > check_sender_access hash:/etc/postfix/badsender, > reject_unknown_sender_domain, > reject_non_fqdn_sender, > check_sender_access hash:/etc/postfix/sender_access, > reject_unverified_sender, > permit > > I haven't found a good way to debug postfix and have it log exactly why > the mail is being prevented. Here's the full log that I get in my maillog: > > May 31 09:18:12 mail2 postfix/smtpd[26444]: connect from > unknown[fe80::20c:29ff:fecf:7df0%eth0] > May 31 09:18:12 mail2 postfix/smtpd[26444]: setting up TLS connection from > unknown[fe80::20c:29ff:fecf:7df0%eth0] > May 31 09:18:12 mail2 postfix/smtpd[26444]: Anonymous TLS connection > established from unknown[fe80::20c:29ff:fecf:7df0%eth0]: TLSv1 with cipher > DHE-RSA-AES256-SHA (256/256 bits) > May 31 09:18:12 mail2 postfix/smtpd[26444]: NOQUEUE: reject: RCPT from > unknown[fe80::20c:29ff:fecf:7df0%eth0]: 450 4.1.7 <[email protected]>: Sender > address rejected: unverified address: Address verification failed; > from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<host.dom.ain> > May 31 09:18:12 mail2 postfix/smtpd[26444]: warning: network_biopair_interop: > error reading 5 bytes from the network: Connection reset by peer > May 31 09:18:12 mail2 postfix/smtpd[26444]: disconnect from > unknown[fe80::20c:29ff:fecf:7df0%eth0] > > Any gurus around who can help me debug? > > Thanks, > > -derek > > -- > Derek Atkins, SB '93 MIT EE, SM '95 MIT Media Laboratory > Member, MIT Student Information Processing Board (SIPB) > URL: http://web.mit.edu/warlord/ PP-ASEL-IA N1NWH > [email protected] PGP key available > _______________________________________________ > Discuss mailing list > [email protected] > http://lists.blu.org/mailman/listinfo/discuss -- John Abreau / Executive Director, Boston Linux & Unix OLD GnuPG KeyID: D5C7B5D9 / Email: [email protected] OLD GnuPG FP: 72 FB 39 4F 3C 3B D6 5B E0 C8 5A 6E F1 2C BE 99 2011 PGP KeyID: 32A492D8 / Email: [email protected] 2011 PGP FP: 7834 AEC2 EFA3 565C A4B6 9BA4 0ACB AD85 32A4 92D8 _______________________________________________ Discuss mailing list [email protected] http://lists.blu.org/mailman/listinfo/discuss
