Is it credible to send it to the mailbox to make the recruitment information for your interview?

If it's a private email, it's not credible. If the invitation is sent by the system of the talent website or its company email, it is credible. There is a template for corporate members of talent websites to invite job seekers for interviews. Generally speaking, companies will send more invitations through the system of talent websites.

In addition, there is also personal information management in registering resumes on talent websites. You can check the "Resume View History" to find out which companies have viewed your resume and which companies have viewed your contact information, so you can check it.