| in1-smtp.messagingengine.com | 3600 | 103.168.172.216Fastmail / Fastmail Pty Ltd |
| in1-smtp.messagingengine.com | 3600 | 103.168.172.217Fastmail / Fastmail Pty Ltd |
| in1-smtp.messagingengine.com | 3600 | 103.168.172.218Fastmail / Fastmail Pty Ltd |
| in1-smtp.messagingengine.com | 3600 | 103.168.172.219Fastmail / Fastmail Pty Ltd |
| in1-smtp.messagingengine.com | 3600 | 103.168.172.220Fastmail / Fastmail Pty Ltd |
| in1-smtp.messagingengine.com | 3600 | 103.168.172.221Fastmail / Fastmail Pty Ltd |
| in1-smtp.messagingengine.com | 3600 | 103.168.172.222Fastmail / Fastmail Pty Ltd |
| in1-smtp.messagingengine.com | 3600 | 103.168.172.223Fastmail / Fastmail Pty Ltd |