Eric Luyten Eric.Luyten at vub.ac.be
Wed Mar 23 10:27:46 EDT 2016

On Wed, March 23, 2016 3:13 pm, Sebastian Hagedorn via Info-cyrus wrote:
> Hi,
> we've been using IPv6 for a few years now, but so far we haven't used it with
> Cyrus. Now we want to, and I have a few questions:
> Is it correct that if we use host names in the listen statement and add a
> AAAA record to the DNS that Cyrus will automatically listen to both the
> IPv4 and the IPv6 address?
> I have manually added listen statements with literal IPv6 addresses to
> cyrus.conf and HUP'ed the master, but that didn't seem to work. What format do
> I have to use? Plain addresses (e.g. 2001:DB8::6f0:484c:df5:e8b1:28cd),
> in brackets like in a browser (e.g. [2001:DB8::6f0:484c:df5:e8b1:28cd]),
> sendmail-style (e.g. IPv6:2001:DB8::6f0:484c:df5:e8b1:28cd) or ...? Or is the
> problem that for changes like that I have to restart the service?


'listen' entries go into /etc/cyrus.conf, not imapd.conf,
and IMO require a Cyrus service restart, yes.

Eric Luyten, Computing Centre VUB/ULB, Brussels.

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