what social networks offer a built-in mailbox?

I found out about the problem of our brother in the forum and I was interested in the question: maybe you know what social networks offer a built-in mailbox? How is it in terms of security? A worthy alternative to Gmail? And what these sites specialize in?

 

Third parties are never 100 percent secure. Look what happened to Hillary's emails and she had her own server!

 

What is your goal?
Social networks have the function of sending a message. You can send a message / letter, attach photos, files, documents. It may look like mail.
What else do you need?

 

not important for what. let's assume it's just interest.

 

OK. I'm ready to assert that any social network is mail in this case. Is that enough for you?

 

no. you did not understand the essence of my desire.

 

I asked about your goal. You say it's your interest. Can you explain what you want?

 

so far I just wonder what these social networks are and how can I use this function to work with advertising on the site, for example

 

Did we talk about mailbox? I don't seem to understand you

 

Hi I'm from a remote village and our internet is very weak I need Rdp / vps and I do not have a cash account I want your help.

 

it`s a pity