A company is hiring and asked me to email him my resume. How long will it take to reply?

Send your resume to the email address of the recruiting unit and wait for it to be restored. But when you send an email, you should set it as a read receipt, so that you can know if he has read your resume. It's hard to say when he can give you an answer. If you are accepted, I will give you an answer in a day or two. If I don't want you, I probably won't give you an answer. You'd better call them and ask them again in a few days. If the reply is uncertain, it is estimated.