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Proxy4U

Report abuse

If traffic from one of our IP addresses hit your service, write to us. Every address in our network belongs to a person who agreed to share it, and we can tell which customer caused a given connection.

Where to write

Send one e-mail to [email protected]. There is no form and no account to create. Automated reports are welcome; one message per incident is easier to act on than one per request.

[email protected]

What to include

Without these we cannot match the traffic to a customer, and the report cannot be acted on:

  • The IP address of ours you saw.
  • The time, with the time zone or an offset (for example 2026-10-09 14:05:11 +07:00), or a UTC timestamp. A date alone is not enough.
  • What happened: the destination host or URL, the ports, and whether it was one request or many.
  • Log lines or packet counts, as plain text in the e-mail or a small attachment. A screenshot is harder for us to search.
  • How to reach you if we need one more detail.

What happens next

  • We answer within 24 hours, in English or Vietnamese.
  • We look the connection up in our metadata (time, destination, byte counts — never content) and find the customer behind it.
  • Depending on what we find we warn, suspend or close that customer's account, and we tell you which of those we did.
  • We keep this metadata for 90 days, so report while it is still there.
  • We never pass on the device owner's name or address. Give us a court order or a lawful request and we answer it through [email protected].

Already blocked by design

Some things cannot come from our network at all, so if you see them the source is not us:

  • Connections to private and local addresses: refused after the DNS lookup.
  • Outbound mail: ports 25, 465, 587 are blocked.
  • Inbound connections: the devices open no listening port.