| A standard protocol for sending emails across the Internet. |
The Post Office Protocol used by email clients to download messages from a mail server to a local device. |
| Software or application used to access and manage email accounts. |
A protocol that allows users to access and manage their email on a remote server. |
| A numerical identifier used to distinguish different communication channels on a networked device. |
A repository for storing incoming emails until retrieved by a user. |
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A server responsible for receiving, storing, and sending emails. |