2.6 Understanding MailMarshal Folder Locations

By default, the installation process creates several folders in the MailMarshal program installation folder. For many cases, the default folder locations work well.

In some cases, you can enhance product performance by creating these folders on another local physical hard drive. You can choose different locations on each email processing server. The folders are defined as follows:

Logging

MailMarshal uses this folder to store text logs that provide details of each action taken by each MailMarshal service. By default, MailMarshal retains logs for five days. The files can be large when email volume is high

Information 

Note: Compressing this folder with Windows file system compression reduces the disk space required and does not affect performance in most cases. Do not use compression for any other MailMarshal folders.

 

Queues

MailMarshal uses this folder and sub folders to hold messages for processing or sending. In most cases, these folders do not grow large. However, if MailMarshal cannot connect to upstream or down­stream servers, the data in the folders can grow quickly.

Unpacking

MailMarshal uses this folder to unpack messages and extract their content, including attachments such as archive files. The size of this folder is relatively small. Because the Server creates and deletes files repeatedly, this area of the disk can become fragmented, which can have an adverse effect on other applications running on the server. You can improve performance by placing this folder on a sep­arate physical disk drive from other MailMarshal components.

Quarantine

MailMarshal uses this folder as the default location for all quarantine folders. MailMarshal stores all quarantined messages in sub folders of this folder, including any archived messages, deadlettered messages that could not be processed fully, and messages in the Mail Recycle Bin. Ensure the disk drive where this folder resides has enough free space to accommodate the messages. The space required varies depending on your retention policies for quarantined messages. You can move individ­ual folders to physically separate places on the server. For more information, see “Working with Fold­ers”.

Information 

Note: MailMarshal does not accept new messages if there is less than 512MB of free disk space available for the Queues, Unpacking, Quarantine, or Logging folders. MailMarshal slows down mail acceptance if there is less than 1GB of free space available for these folders. This is a significant increase in required space from earlier versions.

For more information, see Trustwave Knowledge Base article Q11669.

 

Trustwave MailMarshal 10.1.0 User Guide March 2024
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Full document: see MailMarshal Documentation.