Knowledge Base

I'm getting "Server Error in '/' Application". What does this mean?

If you see the following in the error details: Parser Error Message: It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be c...

Fatal error: Allowed memory size of [###] bytes exhausted (tried to allocate [###] bytes) in [path]/[file].php on line [###]

This error caused by limitation of memory available for PHP script. Increase memory_limit PHP configuration setting (see the [PHP manual]). After editing the PHP configuration file, you will probably ...

Getting notifications about new messages in mailbox (IMAP IDLE and polling)

If your application powered by MailBee.NET Objects or MailBee Objects needs to learn about new messages in mailbox immediately as they arrive, there are two approaches possible: waiting for notificati...

How to assign correct permissions to App_Data folder of WebMail Pro ASP.NET

If you got one of the following errors during WebMail Pro ASP.NET installation: Creating/deleting folders Error, can't create folders in the data folder. Creating/deleting files Error, can't cre...

I'm getting "The previous session was terminated due to a timeout" message. Please help!

The typical reason of such error message thrown by WebMail Pro ASP.NET is unexpected loss of session data. By default, InProc session-state mode is used by .NET version of WebMail Pro. That means that...

Error while attaching files to new message. Please advise.

Common problem with attachments is insufficient permissions for attachments folder which is located in the data folder. Please refer to this topic for Linux or this topic for Windows to learn how to g...

How to specify correct path to App_Data folder of WebMail Pro ASP.NET

If you got the following error during WebMail Pro ASP.NET installation: Not Found, can't find "C:\Inetpub\wwwroot\WebMailPro\App_Data\" folder This means App_Data subfolder is missing in your in...

Known spammers IP addresses — database for antispam enforcement

MailSuite Pro comes with Bayesian antispam filter which helps protecting mailboxes from unsolicited mail. However, sometimes that may be not enough due to tons of spam coming through botnets. If this ...

Is WebMail Pro ASP.NET shipped with the full source code? Can I modify it?

Yes, AfterLogic WebMail Pro ASP.NET is shipped with the full source code and you're free to modify it to implement any feature you need. Note: WebMail Pro package includes MailBee.NET.dll redistrib...

Upgrading MailSuite Pro for Windows installation

If you'd like to install a newer version of MailSuite Pro for Windows (previously known as XMail Server Pro for Windows), first you need to remove the package you've installed. But before doing th...