Content-type: Multipart
Defines the semantics of a mail message with several parts
Requires a boundary parameter
Subtypes
- Multipart/mixed
- Multipart/alternative
- Multipart/digest
- Multipart/parallel
Content-type: MULTIPART/MIXED; BOUNDARY="Boundary_[ID_nf99lkyavAuSoClF/HeK0Q]"
--Boundary_[ID_nf99lkyavAuSoClF/HeK0Q]