M.sys.mail({
	to: ['test1@test.com', 'test2@test.com']
});
M.sys.mail({
	to: ['test1@test.com', 'test2@test.com'],
	subject: '제목'
});
M.sys.mail({
	to: ['test1@test.com', 'test2@test.com'],
	subject: '제목',
	content: '내용'
});
M.sys.mail({
	to: ['test1@test.com', 'test2@test.com'],
	cc: ['cc1@test.com', 'cc2@test.com'],
	bcc: ['bcc1@test.com', 'bcc2@test.com'],
	subject: '제목',
	content: '내용'
});