| Date | IP Address |
| 2021-04-11 | 213.48.96.31 (ClassC) |
| 2026-01-24 | 18.135.223.82 (ClassC) |
| Date | Domain | IP |
| mx1.teachitcitizenship.co.uk | 2025-09-21 | 18.135.223.82 |
| mx4.teachitcitizenship.co.uk | 2025-06-27 | 18.135.223.82 |
| posta.teachitcitizenship.co.uk | 2025-06-10 | 18.135.223.82 |
| home.teachitcitizenship.co.uk | 2025-09-10 | 18.135.223.82 |
| l.teachitcitizenship.co.uk | 2025-07-20 | 18.135.223.82 |
| zmail.teachitcitizenship.co.uk | 2025-06-04 | 18.135.223.82 |
| mailserver.teachitcitizenship.co.uk | 2026-01-24 | 18.135.223.82 |
| root.teachitcitizenship.co.uk | 2025-09-11 | 18.135.223.82 |
| mailhost.teachitcitizenship.co.uk | 2025-07-22 | 18.135.223.82 |
| post.teachitcitizenship.co.uk | 2025-08-09 | 18.135.223.82 |
| gw.teachitcitizenship.co.uk | 2025-09-09 | 18.135.223.82 |
| www.teachitcitizenship.co.uk | 2025-07-20 | 18.135.223.82 |
| relay.teachitcitizenship.co.uk | 2025-07-10 | 18.135.223.82 |