Our SMTP and antispam service is now available over IPv6


#1

As part of our rollout of services over IPv6, which has already been completed for NTP we’ve made our SMTP handling available over IPv6 too.

If you’re using our anti-spam solution you should be aware that it will now try to connect to your host over IPv6 if possible.

Connections will come from addresses in the ranges

[ulist]
[] 89.16.184.144/28
[
] 2001:41c8:20:359::/64
[/ulist]

So if you block mail or connections on a per IP basis, you should allow anything from those addresses.