| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| letco.co.jp | SOA | 21600 | kotetsu.alpha-lt.net postmaster@alpha-web.ne.jp 2023080500 10800 3600 604800 86400 | |
| letco.co.jp | NS | 21600 | tsukuba.aics.ne.jp | |
| letco.co.jp | NS | 21600 | amdns03.alpha-mail.jp | |
| letco.co.jp | NS | 21600 | kotetsu.alpha-lt.net | |
| letco.co.jp | A | 21600 | 216.230.253.76 | |
| letco.co.jp | MX | 477 | 10 | ampub02.alpha-mail.net |
| letco.co.jp | MX | 477 | 10 | ampub03.alpha-mail.net |
| letco.co.jp | MX | 477 | 50 | ampub04.alpha-mail.net |
| letco.co.jp | MX | 477 | 10 | ampub01.alpha-mail.net |
| www.letco.co.jp | A | 21600 | 216.230.253.76 |