Having not heard of them before, I did a quick lookup to see who they are. They might want to fix their DNS:

niall@ernie:~$ host modata.ie
modata.ie has address 82.195.132.8
modata.ie has address 82.195.132.9
modata.ie has address 82.195.132.11
modata.ie has address 82.195.132.12
modata.ie has address 82.195.132.13
modata.ie has address 82.195.132.14
modata.ie has address 82.195.132.16
modata.ie has address 82.195.132.20
modata.ie has address 192.168.1.10
modata.ie has address 192.168.1.11
modata.ie has address 192.168.1.13
modata.ie has address 192.168.1.14
modata.ie has address 192.168.1.16
modata.ie has address 192.168.1.17
modata.ie has address 192.168.1.18
modata.ie has address 192.168.1.19
modata.ie has address 192.168.1.20
modata.ie has address 192.168.1.21
modata.ie mail is handled by 10 mail.secure-txns.com.
modata.ie mail is handled by 20 mail.iemx.net.

The www record is OK though!

niall@ernie:~$ host www.modata.ie
www.modata.ie has address 82.195.132.8

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