Oi mail oi.com br mail

It seems like you're trying to communicate in a language that's a mix of Portuguese and English!

To help me better understand, I'll try to translate what you've written:

• "Oi mail" might mean "Hello email" or "Hi mail"
• "Oi.com" could be a play on the phrase "oi" (hello) and ".com" (a common top-level domain for websites)
• "Br mail" might mean "Brazil mail" or "Brazilian mail"

If I'm correct, you might be trying to say something related to email or mail services in Brazil?