EllisLab/CodeIgniter — Issue #637: SMTP with Exchange 2003
Author: jumpig
Created: 2011-10-31 10:50:44+00:00
State: open

As reported in CI forum (http://codeigniter.com/forums/viewthread/203230/), I get a timeout error sending email through Email.php vs Exchange 2003.
On the HELLO message phase, the message sent is:
EHLO my.webserver.name

Sending this message manually on the server via Telnet the answer I get is

250-my.exchange.server.name Hello [192.168.215.216]
250-TURN
250-SIZE
250-ETRN
250-PIPELINING
250-DSN
250-ENHANCEDSTATUSCODES
250-8bitmime
250-BINARYMIME
250-CHUNKING
250-VRFY
250-X-EXPS GSSAPI NTLM LOGIN
250-X-EXPS=LOGIN
250-AUTH GSSAPI NTLM LOGIN
250-AUTH=LOGIN
250-X-LINK2STATE
250-XEXCH50
250 OK

In the web application I get a timeout error (line number around 1839) when the following command is executed:
fgets($this->_smtp_connect, 512)