| 単語 | フルスペル |
|---|---|
| DKIM | DomainKeys Identified Mail |
| MDA | Mail Delivery Agent |
| MIME | Multipurpose Internet Mail Extensions |
| MRA | Mail Retrieval Agent |
| MTA | Mail Transfer Agent |
| MUA | Mail User Agent |
| S/MIME | Secure / Multipurpose Internet Mail Extensions |
| SMTP | Simple Mail Transfer Protocol |