Mail Ports for POP3, IMAP and SMTP Print
| Protocol | Security Setting | Port Number(s) |
|---|---|---|
| SMTP (sending mail) | Unencrypted | 25* (or 26) |
| POP3 (receiving mail) | Encrypted – TLS | 995 |
| POP3 (receiving mail) | Encrypted – SSL | 995 |
| POP3 (receiving mail) | Unencrypted | 110 |
Is SMTP port 587 secure?
Port 587: The standard secure SMTP port Modern email servers use port 587 for the secure submission of email for delivery. For example, if you use an email client software like Outlook or Apple Mail, it most likely is configured to use this port to send your messages.
What is the difference between 465 and 587?
Port 465 requires negotiation of TLS/SSL at connection setup and port 587 uses STARTTLS if one chooses to negotiate TLS. The IANA registry was updated to allow legitimate use of port 465 for this purpose. For mail relay, only port 25 is used so STARTTLS is the only way to do TLS with mail relay.
What port should I use for Gmail?
Step 2: Change SMTP & other settings in your email client
| Incoming Mail (IMAP) Server | imap.gmail.com Requires SSL: Yes Port: 993 |
|---|---|
| Outgoing Mail (SMTP) Server | smtp.gmail.com Requires SSL: Yes Requires TLS: Yes (if available) Requires Authentication: Yes Port for SSL: 465 Port for TLS/STARTTLS: 587 |
How do I find my email port?
To find the port numbers of a POP3 or IMAP email account in Outlook, please do as follows:
- Click File > Info >Account Settings > Account Settings.
- In the Account Settings dialog box, please select the specified email account whose port numbers you will find under the Email tab, and click the Change button.
Why is port 465 blocked?
IANA initially assigned port 465 for an encrypted version of SMTP called SMTPS. However, IANA since has reassigned this port for a different use, so it should no longer be used for SMTP. Don’t use port 465, because this port is no longer an accepted standard for SMTP since it has been reassigned for a different us.
What is the use of port 587?
Port 587: This is the default mail submission port. When users submit an email to be routed by a proper mail server, this is the one that will provide best results. Port 587, coupled with TLS encryption, ensures that email is submitted securely and following the guidelines set out by the IETF.
What is port No 587 used for?
What ports does Sep 12 use?
Communication between a SEPM and a Microsoft SQL Database Server if they reside on separate computers. Communication between the embedded database and the SEPM. The Group Update Provider (GUP) proxy functionality of SEP client listens on this port. This is the Tomcat Shutdown port. In SEP 12, port 8765 is used.
What is the default mail submission port for SMTP?
Port 587: This is the default mail submission port. When an email client or outgoing server is submitting an email to be routed by a proper mail server, it should always use SMTP port 587 as the default port. This port, coupled with TLS encryption, will ensure that email is submitted securely and following the guidelines set out by the IETF.
What is SMTP port 25 used for?
SMTP port 25 continues to be used primarily for SMTP relaying. SMTP relaying is the transmittal of email from email server to email server. In most cases, modern SMTP email clients (Microsoft Outlook, Mail, Thunderbird, etc.) shouldn’t use this port.
How do I find the SMTP server hostname and port number?
If you are subscribed to a hosted email relay service you can get the SMTP server hostname and port number from the support page of your email service. If you run your own SMTP server you can find the configured SMTP port number and address from the SMTP server configuration.
