Error while attaching files to new message. Please advise.

MailSuite Pro MailSuite Pro MailSuite Pro WebMail Pro WebMail Pro WebMail Pro Windows Windows Windows Linux Linux Linux Red-Hat Red-Hat Red-Hat CentOS CentOS CentOS Debian Debian Debian .NET .NET .NET PHP PHP PHP IIS IIS IIS Apache Apache Apache attachment attachment attachment error error error problem problem problem
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 grant necessary permissions.

Another typical reason of this issue is that attachments size is limited in PHP configuration. To increase the limit, open your php.ini file and locate the following lines:

 * upload_max_filesize = 2M
 * post_max_size = 8M

You should set these limits according to your needs, but post_max_size should be equal to at least upload_max_filesize * 2.

Also, if you use IIS 6, size of a file that can be uploaded onto the server is limited to 200K by default. You can increase this limit according to you needs. To do this, type "notepad %WINDIR%\system32\inetsrv\MetaBase.xml" in command line, search for the "AspMaxRequestEntityAllowed" property, and specify necessary size in bytes, then save this file. Please note, "Enable Direct Metabase Edit" must be turned on, in other case, you will be not able to edit this file. To check this option, look at your web host properties in Internet Information Services (IIS) Manager.

For .NET version of WebMail Pro, you should try adding httpRuntime tag with maxRequestLength value set in web.config file under system.web:

<httpRuntime maxRequestLength="8192" />


The value is set in Kbytes, so it equals 8Mb. Of course, you can specify any other value.
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