Unfortunately, email spammers and scammers often abuse cloud hosting providers. At PreVPS, we take this issue seriously and block ports 25 and 465 by default on all cloud servers to prevent abuse. This is a common practice in the cloud hosting industry. However, we understand that legitimate use cases exist, and we are happy to work with our customers to find a solution. After you have been with us for at least one month and paid your first invoice, you can submit a limit request to unblock these ports for a valid use case. Please provide details about your use case in your request, and we will make a decision on a case-by-case basis.
Alternatively, you can use port 587 to send emails via external mail delivery services. This port is not blocked and can be used without submitting a limit request.