Glossary
IMAP is a protocol used by email clients (like Outlook or Apple Mail,) to access and manage emails stored on a remote mail server. It allows users to read, organize, and delete email messages without downloading them permanently, keeping messages synced across multiple devices.
Key features of IMAP:
IMAP also supports an optional extension called IDLE, which allows real-time message updates (aka push email). Most modern email clients use it to avoid constant refreshing.
IMAP is used only on the receiving side of email – it plays no role in sending or delivery. Mailgun customers typically don’t use IMAP, since Mailgun handles email transmission and logging, not mailbox storage or client access.
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