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How to apply mass SMS in insurance industry?

You have to open your own Weibo, and then invite all your important people to come over, so as not to let the information leak easily, and I have to set a password in that Weibo. You can only enter that group if you know the password, and for example, friends, if others steal your WeChat, it is also conservative, so you can keep your secrets from leaking out and not threaten yourself.