Hi,
We were using hMailServer at work as a POP3/SMTP server - but work demanded that we have a webmail interface as well. I installed PHP (5.4) on IIS 7.5 (successfully) with MSSQL 2012.
I then installed Roundcube (after a couple of hours) and everything is working fine (logging in, reading, receiving etc.) except one major thing.
When composing a mail, everything works fine until I press SEND - the UI freezes and hangs. The mail itself IS SENT, but I cannot do anything after this but to close to window and log in again - and yes, the message is in the SENT MESSAGES.
It is not a port 25 (SMTP) issue of any kind - and I really do not know what it is about.
I am not an IT specialist of any kind, so advise and help is appreciated.
Alek