Resolved MailEnable Webmail won't load properly

[Erico Morais]

Hy!

Following a disk I/O overload event, we experienced a crash and lost permissions on several critical directories, many of which we had to set back up manually. Ever since, our MailEnable Webmail has been experiencing a very distinctive loading issue as you can see in the attached screenshot. The fields load properly yet the text won't show up despite the fact that the browser itself won't report any 50x or 40x or console errors, so I assume these elements aren't being sent to the IIS (probably due to lack of permission somewhere). Moreover, it won't login, the authentication form reloads after inserting the e-mail and password and hitting Enter.

I tried to run Plesk Reconfigurator's Folder Privileges Fix (the last option up to botton) on the following services to no avail:

Mail Enable Webmail
Mail Enable Standard
Plesk
Plesk Agent

Horde is still working fine, so we are switching customers to it as a temporary workaround.

This is a Plesk Onyx server running on top of Windows 2016 Standard.

Here's the log output after trying to run MailEnable's troubleshooting utility (option #2: "Web application reconfigure"):

09/01/2020 23:20:34 Running web application reset from installer GUI
09/01/2020 23:20:55 BEGIN INSTALLATION - WEBMAIL
09/01/2020 23:20:55 Agent: .Net Installer
09/01/2020 23:20:56 Installing MailEnable webmail starting on quinta-feira, 9 de janeiro de 2020 at 23:20:56
09/01/2020 23:20:56 Setting access to existing ISAPI Filters/Extensions
09/01/2020 23:20:56 Grant Single Directory Owner Read Access: Granting IME_USER access to C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_filter.dll
09/01/2020 23:20:56 Grant Access Failed: Owner=IME_USER; Path=C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_filter.dll; Access=R; Recursive=False; Message=Attempted to perform an unauthorized operation.
09/01/2020 23:20:56 Grant Single Directory Owner Read Access: Granting IME_ADMIN access to C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_filter.dll
09/01/2020 23:20:56 Grant Access Failed: Owner=IME_ADMIN; Path=C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_filter.dll; Access=R; Recursive=False; Message=Attempted to perform an unauthorized operation.
09/01/2020 23:20:56 Grant Single Directory Owner Read Access: Granting IME_USER access to C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_filter.dll
09/01/2020 23:20:56 Grant Access Failed: Owner=IME_USER; Path=C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_filter.dll; Access=R; Recursive=False; Message=Attempted to perform an unauthorized operation.
09/01/2020 23:20:56 Grant Single Directory Owner Read Access: Granting IME_ADMIN access to C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_filter.dll
09/01/2020 23:20:56 Grant Access Failed: Owner=IME_ADMIN; Path=C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_filter.dll; Access=R; Recursive=False; Message=Attempted to perform an unauthorized operation.
09/01/2020 23:20:56 Grant Single Directory Owner Read Access: Granting IME_USER access to C:\Windows\Microsoft.NET\Framework64\v2.0.50727\aspnet_filter.dll

Has anyone ever experienced this before? This loading issue seems so peculiar that it leads me to assume it shouldn't be hard to pinpoint its root cause but I'm unable to figure it out.

Thanks!

 

[Erico Morais]

I'm not sure why but this issue went away on its own just half an hour after I opened this topic. Anyway, sorry about that, have a nice day everyone!