-seml (Send archive by email) switch
Sends archive by e-mail.
Syntax
-seml[.]
  - [.]
- Archive will be deleted after attaching to email message.
Example
7z a archive.7z -seml a.txt
compresses a.txt file and sends 
using archive.7z by email.
Commands that can be used with this switch
  a (Add),
  u (Update)