MAPI over HTTP
E697413
MAPI over HTTP is a Microsoft messaging transport protocol that enables Outlook and other clients to access Exchange Server mailboxes over standard HTTP/HTTPS connections for improved reliability and performance.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
messaging transport protocol
ⓘ
network protocol ⓘ |
| accessesResource |
Exchange calendar
ⓘ
Exchange contacts ⓘ Exchange mailbox ⓘ Exchange tasks ⓘ |
| authenticationMethod |
Basic authentication (over SSL)
ⓘ
Kerberos NERFINISHED ⓘ NTLM NERFINISHED ⓘ OAuth NERFINISHED ⓘ |
| benefit |
better coexistence with modern HTTP infrastructure
ⓘ
improved reliability over unreliable networks ⓘ reduced connection latency ⓘ |
| category |
Microsoft Exchange technology
NERFINISHED
ⓘ
email access protocol ⓘ |
| configuredVia |
Exchange virtual directory
ⓘ
IIS NERFINISHED ⓘ |
| defaultProtocolSince |
Exchange Server 2016
NERFINISHED
ⓘ
Exchange Server 2019 NERFINISHED ⓘ |
| developer | Microsoft ⓘ |
| documentation | Microsoft Exchange protocol documentation (MS-OXCMAPIHTTP) NERFINISHED ⓘ |
| encryption | TLS ⓘ |
| exposes | MAPI RPC semantics over HTTP ⓘ |
| feature |
better visibility and diagnostics
ⓘ
faster reconnection ⓘ improved error handling ⓘ session affinity ⓘ support for network changes ⓘ |
| introducedIn | Exchange Server 2013 Service Pack 1 NERFINISHED ⓘ |
| protocolFor | Microsoft Exchange Server NERFINISHED ⓘ |
| protocolFor | Outlook NERFINISHED ⓘ |
| replacesProtocol | RPC over HTTP ⓘ |
| requires | Autodiscover ⓘ |
| supportsClient |
Microsoft Outlook 2013
NERFINISHED
ⓘ
Microsoft Outlook 2016 NERFINISHED ⓘ Microsoft Outlook 2019 NERFINISHED ⓘ Microsoft Outlook for Microsoft 365 NERFINISHED ⓘ |
| supportsScenario |
external Outlook connectivity
ⓘ
internal Outlook connectivity ⓘ load-balanced Exchange Client Access services ⓘ |
| supportsServer |
Exchange Server 2013 SP1
NERFINISHED
ⓘ
Exchange Server 2016 NERFINISHED ⓘ Exchange Server 2019 NERFINISHED ⓘ |
| transportLayer | application layer ⓘ |
| usesPort |
TCP 443
ⓘ
TCP 80 ⓘ |
| usesTransportProtocol |
HTTP
ⓘ
HTTPS ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.