On Wed, Dec 17, 2014 at 09:58:19PM -0600, Frank Bulk wrote: > Is it possible because they can't easily assign PTRs to their IPv6 > address space?
Their system automatically assigns a PTR to the initial IPv6 address in the same manner as for the IPv4 address. I'm not sure about the ability to assign a PTR to any further v6 addresses that are used though. > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of > staticsafe > Sent: Wednesday, December 17, 2014 2:37 PM > To: [email protected] > Subject: Re: New operational tool > > On 12/17/2014 06:29, Jonathan McDowell wrote: > > Outbound IPv6 connections to port 25 time out and the statement from > > Digital Ocean was "Unfortunately, at this time, we do not allow SMTP > > over IPv6.". > > They are also blocking outbound port 587 (submission) which I found out > the hard way when mail was being delayed as Postfix tried IPv6 and timed > out. J. -- I'm not popular enough to be different.
