网络词汇
MUA(Mail User Agent)
MTA(Mail Transfer Agent)
Content-Transfer-Encoding: X-token
MIME
Quoted printable 编码
=A3=AC=CB=AE=C4=BE=C7=E5=BB=AABBS=B3=C9=D4=B1=A1=A3=BB=B6=D3=AD=D4=DA
=A3=AC=CB=AE=C4=BE=C7=E5=BB=AABBS=B3=C9=D4=B1=A1=A3=BB=B6=D3=AD=D4=DA
Base64是一种基于64个可打印字符来表示二进制数据的表示方法。