I am having trouble getting calendar sync working; I can’t authenticate.

I had calendar sync working previously on an old OpenSuSE system, but that hardware died. I tried Ubuntu 16.04 Server, but I could not get calendar sync working there. If I recall correctly, the version of the available php package was not compatible (too new), and I did not want to build it from source. I recently moved my SurgeMail server to Centos 7, and I am seeing the same problem. My understanding is that calendar sync is known to work with php 5.3 and php 5.6.

SurgeMail Version 7.3c3-3, Built Jun  7 2017

I’ve installed the various pieces. The netwin script reports:
PHP version = 5.4.16
IMAP module = INSTALLED
PDO database module = INSTALLED
PDO_SQLITE database module = INSTALLED
MBSTRING module = INSTALLED
XML (DOM) module = INSTALLED
When I try to login at https//myserver.mydomain/cal my username/password is not accepted. I know it is correct.

If I login to SurgeWeb and click “Calendar” a box appears at the top:

      Cal Request Failed: 401 Unauthorized

I can telnet to 127.0.0.1:143

# telnet 127.0.0.1 143
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
* OK IMAP (C) myserver.mydomain (Version 7.3c3-3)

I have tried both $type=1 and $type=2 in Nwauth_sabre.php

-- 
John Wilkes
john@wilkes.com

One of the advantages of being disorderly is that
I am constantly making interesting discoveries.