If you have an Autoresponder to build an Opt-In list, use a double Opt-In.

如果有自动应答器，可以建立确认列表，最好是双向确认列表。

youdao

If you opt not to register emacs, start it up by double clicking the runemacs.exe file installed in the d: \ emacs \ bin directory.

如果选择不注册emacs，则双击安装在d： \ emacs \ bin目录中的runemacs . exe文件来启动。

youdao

Thee cuddling can take place anywhere around her cottage in Rochester, New York, but most clients opt to use her large double bed.

你可以在纽约罗切斯特的任何地方选择进行这一服务，但大多数客户都选择她的那张双人床。

youdao

After a few weeks, YesMail agreed to the stricter double opt-in rule and dropped its suit.

FORBES: Spam Warfare

Vixie's tough standard for what constitutes spam centers on the "double opt-in" system.

FORBES: Spam Warfare