| Port No | 366 |
| Service Name | odmr |
| RFC Doc | 2645 |
| Protocol | UDP |
| Description | ODMR - ON-DEMAND MAIL RELAY This provides the ability for SMTP servers to not be connected to the Internet. Instead, a server briefly connects, then sends the ATRN command to a full-time SMTP drop in order to receive its e-mail. |
| Reference Link | ON-DEMAND MAIL RELAY (ODMR) SMTP with Dynamic IP Addresses: RFC2645 |
| Attack |
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