Best VPS Providers with port 25 open.

Before we discuss the best VPS providers with port 25 open, let’s first understand what ports are in computer networking. According to Cloudflare, A port is a virtual point where network connections start and end. computer’s operating system manage ports which is software based . In other words, ports are simply computer protocols that help to establish connections between different services over the Internet. So, ports are gatekeepers of the internet, and without their connections, nothing goes. Let’s see the different ports and what they can do on the internet:

Ports and Connections

1. To connect to a Linux machine via SSH, we need port 22 to be opened on the machine.
2. For establishing a Windows connection. The new default start port is 49152, and the new default end port is 65535.
3. To connect to a remote desktop protocol (RDP), we need port 3389 to be open.
4. To connect to web servers like Apache, we use Port 80. It is the default network port for web servers using HTTP. It operates on the application layer of the TCP/IP networking model and serves as the communication gateway for HTTP requests and responses between client computers and servers.
5. For establishing a DNS query, the standard port for DNS is, port 53. DNS client applications use the DNS protocol to query and request information from DNS servers, and the server returns the results to the client using the same port. Port 53 is used for both TCP and UDP communication.
6. Similarly, to send emails, we need port 25 to be open for outgoing emails on the sending server. So, that is the reason you need port 25 open in your VPS server; if not, no email sending connections will be established, and you won’t be able to send any emails. So, before we explore Best VPS Providers with port 25 open, let’s see the challenges of open port 25.

Challenges of opening Port 25 by VPS Companies

According to Statista in 2022, there were an estimated 333 billion emails sent and received daily around the world, with over 70% as spam. This figure is projected to increase to 392.5 billion daily emails by 2026. So, to protect the internet from spam most internet service providers block 25 by default.

Another reason why most VPS companies block port 25 by default is because, a spamer can easily pay for their ips and get it all blacklisted as a result of spam activities. This will damage the reputation of their IPs, which means low sales for the VPS company. Anytime that there is an unusual or spam traffic from your SMTP server, third party services like spamhaus will notify your ISP and you will get blacklisted ASAP and you have to follow instructional guide to remove it from blacklist. Though it takes time for submitted requests to be delisted, so don’t spam. Also, law enforcement can arrest and charge the VPS company for aiding spamming over the internet.

There are laws against spamming, and one of them is the CAN-SPAM ACT of 2003.

Quick NOTE: It should be noted that VPS providers change their policies from time to time and decide to block their port 25 at any time. At the time of writing this article, below are the lists of Best VPS Providers with port 25 open:

1. VERPEX
2. CONTABO
3. VPSBG
4. Hostwinds
5. OVH cloud

So these are the list I have for now, and if you find out that any of them isn’t working anymore, pls email me at support@j-insights.com so that I can update this article to keep it beneficial to future readers.