TheSimple Mail Access Protocol (SMAP)^[1] is anapplication layerInternetprotocol for accessingemail stored on aserver. It was introduced as part of theCouriersuite, with the goal of creating a simpler and more capable alternative toIMAP.

As of 2005^[update], SMAP is still considered experimental, and is only supported by theCourier server andConeclient.

• MIMEattachments can be transmitted in their raw, decoded form. This allows largebase64-encoded attachments to be transmitted without the 4:3 inflation that base64 encoding usually incurs.^[2]
• Support for sending outgoing e-mails through the SMAP connection, instead of using a separateSMTP connection to the server. An outgoing message only needs to be transmitted once to both send it and save a copy to a server-side folder.
• Unicode folder names, with native support for hierarchy.
• SMAP clients and servers can fall back to IMAP if the peer does not support SMAP.

• POP4, another attempt at creating a "simpler IMAP", by extendingPOP3

• Simple Mail Access Protocol, Version 1

• Internet mail protocols

• Articles containing potentially dated statements from 2005
• All articles containing potentially dated statements