Forum Moderators: phranque
Can You suggest a simple software that do that in the budget of 500 USD.
You will need to use a proxy. The problem with a U.S.-based provider is that if you use SMTP to connect to them, they are still going to record your non-U.S. IP address. And in most cases, even web-based services are going to record the IP address that you connect to them from.
You may be able to proxy through an existing U.S.-based web-hosting account. I outlined this in a previous message here. If you have a hosting account that provides SFTP access to your account, you may be able to use port forwarding and a local SOCKS proxy in an SFTP client to forward SMTP traffic through your host.