ZIP Compress Attachments


NetMailBot can tightly compress your attachments into one ZIP file. The "zip" format is a widely used and accepted file format for file compression. Popular programs like WinZip® and WinRAR can easily open and uncompress the zip format.


  • Save precious bandwidth by compressing large attachments into smaller files.
  • Send your email faster: Smaller attachment size, means less data to send.
  • Easy to use: Use the NetMailBot parameter -zip to automatically Zip compress your attachments.
  • Works with almost all attachment parameters: -attachment, -attachmentdir, attachmetnlist, -watchdir ( This feature is not available to attachments added through mail merge).
  • No additional software to use or install: NetMailBot has the Zip compression functionality built-in.