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Difference between revisions of "Email client protocols and port numbers"

From OdleWiki
(Created page with "The port numbers you set determine the protocol your email client uses. There are four basic options. IMAP secure is the recommended configuration: * IMAP (insecure) * IMAP (...")
 
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IMAP | Port 143 (Insecure Transport - No SSL function enabled)
 
IMAP | Port 143 (Insecure Transport - No SSL function enabled)
 +
 
IMAP | Port 993 (Secure Transport  - SSL function enabled)
 
IMAP | Port 993 (Secure Transport  - SSL function enabled)
 +
 
POP3 | Port 110 (Insecure Transport - No SSL function enabled)
 
POP3 | Port 110 (Insecure Transport - No SSL function enabled)
 +
 
POP3 | Port 995 (Secure Transport  - SSL function enabled)
 
POP3 | Port 995 (Secure Transport  - SSL function enabled)
  
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SMTP | Port 587 (Insecure Transport - No SSL function enabled)
 
SMTP | Port 587 (Insecure Transport - No SSL function enabled)
 +
 
SMTP | Port 465 (Secure Transport  - SSL function enabled)
 
SMTP | Port 465 (Secure Transport  - SSL function enabled)
 +
 
SMTP | Port 25 (username/password authentication MUST also be enabled!)
 
SMTP | Port 25 (username/password authentication MUST also be enabled!)
 
 

Revision as of 18:33, 25 May 2016

The port numbers you set determine the protocol your email client uses. There are four basic options. IMAP secure is the recommended configuration:

  • IMAP (insecure)
  • IMAP (secure)
  • POP3 (insecure)
  • POP3 (secure)

Below are the settings you can use for each protocol along with the security settings.

Incoming

IMAP | Port 143 (Insecure Transport - No SSL function enabled)

IMAP | Port 993 (Secure Transport - SSL function enabled)

POP3 | Port 110 (Insecure Transport - No SSL function enabled)

POP3 | Port 995 (Secure Transport - SSL function enabled)

Outgoing

SMTP | Port 587 (Insecure Transport - No SSL function enabled)

SMTP | Port 465 (Secure Transport - SSL function enabled)

SMTP | Port 25 (username/password authentication MUST also be enabled!)

Port 587 is a highly recommended alternative port because port 25 is often blocked by ISPs.