Version

Argent Advanced Technology 5.1A-1610-A and later

Date

Monday, 14 November 2016

Summary

Most ISPs (Internet Service Provider) provide SMTP and POP3 services supporting SSL/TLS protocols only

The typical examples include Gmail and Yahoo

Argent AT 5.1A-1610-A has been enhanced to support such protocols

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Besides the typical mail server address and logon credentials, the mail port and SSL start mode are the two parameters specific for TLS and SSL mail services

SSL start mode for SMTP and POP3 can take following values:

• Automatic – If the remote port is set to the standard plaintext port of the protocol (where applicable), the component will behave the same as explicit

  In all other cases, SSL negotiation will be implicit

  The SSL negotiation will start immediately after the connection is established

• Implicit – The SSL negotiation will start immediately after the connection is established
• Explicit – The component will first connect in plaintext, and then explicitly start SSL negotiation through a protocol command such as STARTTLS
• No SSL – No SSL negotiation, no SSL security

  All communication will be in plain text mode

For example, Gmail and Yahoo use ‘Automatic’ as SSL start mode for both SMTP and POPS, port 465 for SMTP and 995 for POP3

Contact system administrator or ISP for the exact settings

Technical Background

N/A

Resolution

Upgrade to Argent Advanced Technology 5.1A-1610-A or later