mail transport agent
C9925
concept
A mail transport agent is a software component that transfers email messages from a sender’s system to recipients’ mail servers using standard mail transfer protocols.
All labels observed (6)
| Label | Occurrences |
|---|---|
| mail transfer agent | 3 |
| email server software | 2 |
| email protocol instruction | 1 |
| mail routing engine | 1 |
| mail transport agent canonical | 1 |
| modular mail server | 1 |
Description generation (CDg)
The one-sentence description above was generated by prompting gpt-5.1 with the class name and this instruction.
Instruction
generate a one-sentence description for a given conceptual class. # Response Format Return only the sentence: "Description: [one-sentence description of the conceptional class]"
Input
Class: mail transport agent
Generated description
A mail transport agent is a software component that transfers email messages from a sender’s system to recipients’ mail servers using standard mail transfer protocols.
Instances (8)
| Instance | Via concept surface |
|---|---|
| Microsoft Exchange Server | email server software |
| Domino Router | mail routing engine |
| DATA command | email protocol instruction |
| qmail | mail transfer agent |
| fetchmail | — |
| Sun Java System Messaging Server | email server software |
| Postfix | mail transfer agent |
| Courier MTA | mail transfer agent |