I remember, that notification worked in an early version (1.6.x), but now I got the same problem.
maybe this helps from the log-file:
Session "default" started at 2010-10-21T06:44:17+0000
#1 ERROR: Error: fsockopen() [<a href='function.fsockopen'>function.fsockopen</a>]: SSL operation failed with code 1. OpenSSL Error messages:
error:1408F10B:SSL routines:SSL3_GET_RECORD:wrong version number in
'C:\xampp\htdocs\fengoffice\library\swift\lib\classes\Swift\Transport\StreamBuffer.php' on line 233 (error code: 2)
#2 ERROR: Error: fsockopen() [<a href='function.fsockopen'>function.fsockopen</a>]: Failed to enable crypto in
'C:\xampp\htdocs\fengoffice\library\swift\lib\classes\Swift\Transport\StreamBuffer.php' on line 233 (error code: 2)
#3 ERROR: Error: fsockopen() [<a href='function.fsockopen'>function.fsockopen</a>]: unable to connect to tls://mail.gmx.net:25 (Unknown error) in
'C:\xampp\htdocs\fengoffice\library\swift\lib\classes\Swift\Transport\StreamBuffer.php' on line 233 (error code: 2)
Time since start: 1.0626440048218 seconds
-------------------------------------------------------------------------------
Session "default" started at 2010-10-21T07:04:27+0000
#1 ERROR: Error: implode() [<a href='function.implode'>function.implode</a>]: Invalid arguments passed in
'C:\xampp\htdocs\fengoffice\application\models\notifier\Notifier.class.php' on line 630 (error code: 2)
#2 ERROR: Error: fsockopen() [<a href='function.fsockopen'>function.fsockopen</a>]: SSL operation failed with code 1. OpenSSL Error messages:
error:1408F10B:SSL routines:SSL3_GET_RECORD:wrong version number in
'C:\xampp\htdocs\fengoffice\library\swift\lib\classes\Swift\Transport\StreamBuffer.php' on line 233 (error code: 2)
#3 ERROR: Error: fsockopen() [<a href='function.fsockopen'>function.fsockopen</a>]: Failed to enable crypto in
'C:\xampp\htdocs\fengoffice\library\swift\lib\classes\Swift\Transport\StreamBuffer.php' on line 233 (error code: 2)
#4 ERROR: Error: fsockopen() [<a href='function.fsockopen'>function.fsockopen</a>]: unable to connect to tls://mail.gmx.net:25 (Unknown error) in
'C:\xampp\htdocs\fengoffice\library\swift\lib\classes\Swift\Transport\StreamBuffer.php' on line 233 (error code: 2)
Time since start: 0.46366000175476 seconds
The first seems to be the attempt of notification of an envent <New document uploaded to workspace>, the second is the try to test mail notification.
Different SMTP-configurations were tested for hours and cross-checked with telnet and other stuff. This time I tried - as you can see - with gmx:port 25 tls, as I use it with my mail-Client <Thunderbird>. I tried it as well with googlemail. Same problem.
Looking forward to an helpful answer.
Nethertheless, great work, this fengoffice! I like it.
markus