Similar to Eml形式

AppleSingle and AppleDouble formats

VCard

Media type

Internet abuse

Mailto

S/MIME

Sieve (mail filtering language)

DomainKeys

Email address

BinHex

ICalendar

MHTML

485 (number)

488 (number)

499 (number)

508 (number)

514 (number)

563 (number)

564 (number)

585 (number)

587 (number)

708 (number)

786 (number)

790 (number)

836 (number)

839 (number)

881 (number)

923 (number)