Has anyone been able to open outgoing traffic on port 25?

Last friday we opened a ticket asking DigitalOcean to open outgoing traffic on port 25 in a dropplet because we were moving from another VPS host to DigitalOcean. I’ve created several dropplets trying to get at least one with the ports opened by default but we had no luck. We don’t use e-mail for marketing purposes, only to comunicate with our costumers. We have a selling ticket service and it is not runnable without mails. We can receive mails but can’t reply, which is very annoying. We know that our account is using free credits, but we plain to stay on DigitalOcean if this issue is resolved as fast as possible (and don’t get arbitrarily blocked in the future) because we trust in your infrastructure and service. We hope this issue get resolved as fast as possible or we’ll have to move forwards to another provider. And yes, we tried every single IPTable, firewall, ping, telnet, and postfix configuration from the community support forum and another forums, we know DigitalOcean blocks port 25 now (after the registry, they should put that BEFORE registry) that spend the last 5 days reading and trying to make it work. If they can’t help us, sadly we’ll need to move forwards to another VPS provider. Part of this “question” is from the ticket we opened to them, I’m trying to get a response as fast as possible because all our customers are trying to reach us and our mail is obviously not working. Please, don’t ask us to use sendgrid or something like that, we were able to have our own mail server in a much worse VPS provider. Thanks in advance to all who take the time to read our question