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PHP imap_open to exchange 2010 : Unable to negotiate TLS with this server

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  • PHP imap_open to exchange 2010 : Unable to negotiate TLS with this server

    Hi
    I am getting " Unable to negotiate TLS with this server" when trying to connect to exchange 2010 from imap_open() in PHP script. PHP ver is 5.2.17. I can connect to other mail servers but this one. IMAP on the server is set to "Secure logon. A TLS connection is required for the client to authenticate to the server" and is accessible from outlook or telnet on port 143.
    I have read some posts on the internet that points to the bug in PHP but no resolution or workaround.
    Thanks

  • #2
    Re: PHP imap_open to exchange 2010 : Unable to negotiate TLS with this server

    And thats a connection line
    $mbox = imap_open("{10.0.10.12:143/imap4/tls/novalidate-cert/debug}INBOX", "username", "pass", OP_DEBUG);
    I have tried it with different options, triple checked the details.

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