It's strange to send it yourself. Do you want to send it to the personnel department yourself?

It is out of the question. The company has a front desk and won't let you in for this reason.

At best, she can help you treat your resume as a letter and put it together with other cover letters.

If you put it in the mailbox yourself, you might as well send it.

-

In fact, the most formal way to submit a resume is to mail resume information.

Sending resumes online is not very formal (but the actual effect is also very good, really, at least it is efficient)