Network problems at FreeBSD.org?

[James B. Byrne]

Yesterday I began receiving these error messages from our MTA:

This is the mail system at host inet08.hamilton.harte-lyne.ca.

####################################################################
# THIS IS A WARNING ONLY.  YOU DO NOT NEED TO RESEND YOUR MESSAGE. #
####################################################################

Your message could not be delivered for more than 0 hour(s).
It will be retried until it is 5 day(s) old.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                   The mail system

<freebsd-questions at freebsd.org>: connect to
    mx1.freebsd.org[2001:1900:2254:206a::19:1]:25: Network is unreachable


Now, I realise that this is a temporary failure and evidence indicates
that my messages eventually get through.  However, I also note that
the address given in the error message is in IPv6 notation and I am
aware that our ISP presently does not provide IPv6 capability.  Has
something happened at the mailing list end to causes these errors to
begin to appear?

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James B. Byrne                mailto:ByrneJB at Harte-Lyne.ca
Harte & Lyne Limited          http://www.harte-lyne.ca
9 Brockley Drive              vox: +1 905 561 1241
Hamilton, Ontario             fax: +1 905 561 0757
Canada  L8E 3C3