<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>You want SMTP, not IMAP.<br><br></div><div id="AppleMailSignature">~Keith</div><div><br>On Aug 7, 2018, at 8:11 AM, Marcel de Leeuw via ZendTo <<a href="mailto:zendto@zend.to">zendto@zend.to</a>> wrote:<br><br></div><blockquote type="cite"><div>
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<p>Hi there,</p>
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<p>Our Exchange system engineer says IMAP is enabled on our on-prem Exchange cluster. A test with Mozilla Thunderbird confirms this. I've opened both the secure and the unsecure IMAP port in our firewall from the ZendTo host in our DMZ to one of our Exchange
cluster member servers. Telnet from the ZendTo host to the Exchange cluster member gives a hopeful response. I've fiddled with numerous configurations in preference.php but can't get it to work. Anyone any good suggestions or a comprehensive guide?<br>
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<span style=""><span style="font-size:11.0pt; font-family:"Arial","sans-serif"; color:#1F497D">Kind regards</span></span><span style=""><span style="font-size:11.0pt; font-family:"Arial","sans-serif"; color:#1F497D"><br>
Marcel de Leeuw<br>
</span></span><span style=""><span style="font-size:11.0pt; font-family:"Arial","sans-serif"; color:#1F497D">Vakspecialist B, SO<br>
</span></span><span style=""><span style="font-size:11.0pt; font-family:"Arial","sans-serif"; color:#1F497D">Team ICT Beleid en Beheer<br>
</span></span><span style=""><span style="font-size:11.0pt; font-family:"Arial","sans-serif"; color:#1F497D">Gemeente Schiedam<br>
</span></span><span style=""><span style="font-size:11.0pt; font-family:"Arial","sans-serif"; color:#1F497D">Tel:</span></span><a tabindex="0" href="tel:+31%2010%20219%201156" id="NoLP"><span style=""><span style="font-size:11.0pt; font-family:"Arial","sans-serif"; color:blue">+31
10 2191156</span></span></a></div>
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