SMTP Port 587- Key to Secure Email Delivery

When sending emails, the choice of SMTP server port matters a lot. While ports like 25 and 465 have been used in the past, port 587 stands out as the modern solution for secure email delivery. This port is designed to help users submit outgoing messages safely. If you’re involved in managing email systems, knowing how port 587 works is essential.

 

It not only enhances security but also improves the chances of your emails being delivered successfully. Let’s explore why port 587 is the key to effective and secure bulk email communication.

 

A quick overview of SMTP

SMTP stands for Simple Mail Transfer Protocol. It works by allowing email clients to send messages to an email server, which then forwards them to the recipient’s email server. SMTP is essential for delivering emails quickly and reliably.

 

When you send an email, your email client connects to the SMTP server and provides the message details, such as the sender, recipient, subject, and body. The SMTP mail server checks the recipient’s address and sends the email to the correct server. SMTP can also handle attachments, ensuring that photos, documents, and other files are sent along with the message. While SMTP is great for sending emails, it is often paired with protocols like POP3 or IMAP for receiving emails.

 

Port	Use
Port 25:	Port 25 is used for sending emails between servers. It’s the oldest SMTP port but is often blocked by Internet providers to prevent spam, making it less reliable for personal use.
Port 465:	Port 465 is used for sending emails securely with SSL encryption. It helps protect your email content from being intercepted, ensuring safe communication between your email client and server.
Port 587:	Port 587 is used for sending emails securely. It helps users submit their outgoing messages to the email server, ensuring better delivery and protection against unauthorized access.

 

 

Our Pricing-

Pricing	Cheapest Plan	Standard Plan	Professional Plan
SMTP Server Services	$110	$165	$220
Bulk Email Server	$50	$145	$225
Bulk Email Service	$30	$110	$220

 

View Full Pricing

 

What is SMTP Port 587?

SMTP Port 587 is an important part of email communication. It is used for sending outgoing emails securely. When you send an email, your email client, like Outlook or Gmail, connects to the mail server through this port. Port 587 supports encryption, which means your email data is protected while it travels over the internet.

 

Unlike older ports like 25, which are often blocked by internet service providers, port 587 is widely accepted for email submission. This makes it more reliable for sending messages. It uses the STARTTLS command to upgrade a plain connection to a secure one. Using the 587 port for SMTP helps prevent issues like spam and email spoofing, ensuring that your emails reach the right recipients safely. If you are setting up an email service, choosing SMTP Port 587 is a smart choice for secure and efficient email delivery.

 

Also Read- Keep your email reputation safe with suppression lists

 

 

 

Why port 587 is preferred? 

When it comes to choosing the right Bulk email server, choosing the right port is essential for security and reliability. Port 587 has become the go-to choice for many email services. Here are some reasons why port 587 SMTP is preferred:

 

Secure Communication- Port 587 uses TLS (Transport Layer Security) to encrypt the connection. This means your email and personal information are kept safe from hackers and snoopers.

 

SMTP Authentication- This port supports SMTP authentication, which verifies the sender before allowing the email to be sent. This helps prevent spam and ensures that only authorized users can send emails.

 

Widespread Support- Most modern email clients and servers support port 587. This makes it easier for users to configure their email settings without any compatibility issues.

 

Avoiding ISP Blocks- Many Internet Service Providers (ISPs) block port 25 to reduce spam. By using port 587, you can bypass these restrictions and ensure your emails reach their destination.

 

Compatibility with Mail Services- Popular email services like Gmail, Yahoo, and Outlook recommend using port 587. This compatibility means you can easily integrate your email with these services without problems.

 

Improved Deliverability- Emails sent through port 587 are less likely to be marked as spam. This means your important messages are more likely to land in the recipient’s inbox.

 

Also Read- Top 10 SMTP Server for Bulk Email Marketing

 

 

Implementing SMTP with Port 587

Using SMTP with port 587 is not complicated, but it does involve a few important steps. Here’s a simple guide to help you set it up correctly:

 

Set Up Your Email Client or Server- Begin by adjusting the settings in your email client or server to use Port 587 for sending emails. This is a standard port for secure email transmission.

 

Enable TLS Encryption- Make sure that Transport Layer Security (TLS) is activated. This encryption method protects your email data while it travels over the internet, keeping it safe from prying eyes.

 

Authenticate Your SMTP Connection- Use your email username and password to log in to your SMTP server. Authentication is crucial as it verifies your identity and ensures that only authorized users can send emails through the server.

 

Also Read: 8 Best SMTP Server Providers

 

Common Issues with SMTP Port 587

When using SMTP port 587 for sending emails, you might run into some problems. Here are a few common issues to watch out for:

 

Connection Problems- Sometimes, your email client may not connect to the SMTP server. This can happen due to firewall settings or network issues.

Authentication Errors- If your username or password is incorrect, you won’t be able to send emails. Make sure you have the right login details.

Timeout Issues- If the server takes too long to respond, your email may not be sent. This can happen during peak hours when many users are online.

SSL/TLS Settings- Not using the correct security settings can cause failures. Ensure you enable TLS for secure communication.

ISP Restrictions- Some Internet Service Providers block certain ports, including 587. Check with your ISP if you face issues.

 

Configuring Your Email Client to Use Port 587

Here are some simple steps to help you configure your email client to use Port 587:

 

Access Settings- Open your email client and go to the settings or account configuration section.

Choose SMTP Server- Find the option to add or edit your SMTP server settings.

Enter Server Details- Input the SMTP server address provided by your email service.

Select Port 587- Change the port number to 587 to enable secure connections.

Use Encryption- Make sure to enable TLS or STARTTLS encryption for added security.

Authenticate- Enter your email address and password to authenticate your account.

Test Connection- Send a test email to ensure everything is working smoothly.

 

Read More- What is a Private SMTP Server?

 

Conclusion- 

SMTP port 587 is essential for sending emails securely. It uses encryption to protect your messages, making them safe from hackers. Many email services recommend using this port for better security and reliability. By using port 587, you ensure that your emails reach their destination without being intercepted. It’s important to set up your email client correctly to take advantage of this secure connection. Overall, using SMTP port 587 is a smart choice for anyone who wants to send emails safely and effectively.