SMTP is crucial for transferring emails over the Internet. You can set up your website to send emails using SMTP in order to increase the transactional emails’ deliverability. Furthermore, if you use an email client, SMTP is used by your email client to send outgoing emails to the mail server. A unique SMTP port must be entered in order to connect your site or email client to the SMTP server.
Port numbers make it easier to distinguish between the many ports that are allocated for various protocols and their related services. Ports 80 and 443 are used, for instance, in web surfing. For FTP, ports 21 and 20 are used. As for SMTP, it runs on ports 25, 465, and 2525 or 587.
In order to understand, which SMTP port can you use for your business, you need the Best SMTP relay service provider that can guide you on this. However, you don’t need to worry about the SMTP port too much because your email provider takes care of it. Still, optimal email delivery may not always be ensured by the provider. Hence, knowing the port options at this point might be very beneficial. So let’s get started.
What is the Use of the SMTP Port?
Before choosing the right port, first understand the use of it. SMTP ports are commonly used for two main purposes:
Submission
This means you use a port to submit an email to a mail server for outgoing messages. For instance, an email sent using Gmail must be sent to the outgoing mail server first.
Relay
This process means transmitting an email between two servers. The outgoing mail server “relays” the email to the recipient’s mail server after it has been “submitted” to it. So, the port that is used to relay an email is different than the one used to submit it.
What Ports Should You Use for Your Business?
There are four types of SMTP ports, including 25, 465, 587, and 2525.
You should always use port 587 when setting up your website or email client to send emails using SMTP. For submissions, this is the standard SMTP port for explicit TSL/SSL, and it allows secure TLS delivery. Also, if port 587 is blocked, you can use port 2525. Besides, for implicit TLS/SSL, use port 465.
For email relay, you can use port 25, but because this port gets blocked most often, SMTP relay services come to your aid. With the professional assistance of an SMTP service provider, SMTP relay services enable websites and businesses to send bulk emails without any issues, safeguard their sender reputations, and avoid getting blacklisted.
Conclusion
This concludes our explanation of the typical SMTP ports. By this point, you should have a good understanding of what ports you can use.
Also, if you are trying to find a trusted SMTP relay service provider to send your emails on time, you can rely on us as your email relay partner.
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