Wrote this on IRC, but just in case anyone misses it:

It looks like DNS was changed ${recently} and at least one obvious
thing is not quite right, someone should fix that:

# host -t MX devuan.org
devuan.org mail is handled by 10 mx.devuan.org.devuan.org.

It looks like roundr.devuan.org is still being delegated to the
previous thing, which is fine for the time being, but should
really be changed at somepoint for something that can be
automated.
--
Evilham