Can anyone recommend a VPN provider that will not block SMTP traffic (secure ports like 587)?

I have been using proxy.sh and a few months ago they started to block port 587. I contacted support several times to let them know the mailservers I need unblocked, but they did not do it.
What's the point of using a VPN if I have to disconnect from it every time I want to send an e-mail and I don't usually use webmail.