Export Thunderbird to Lotus Notes Converter tool supports all popular email clients which create MBOX file, such as: Thunderbird, Entourage, Spicebird, Pocomail, AppleMail, etc. Select all the folders as per requirement&chose the NSF option to export them into NSF file format. Click on Export option after giving the location to save the converted file. The working of the tool is so easy that one should not need to have any technical knowledge. The Thunderbird to Lotus Notes converter software is highly capable in converting your MBOX files into NSF with attachments. The attachment are exactly saved in the respective emails. MBOX to NSF converter works on all Lotus Notes version - 9.0, 8.0, 8.5, 7, 6 etc. Convert mailbox messages to .nsf format with this free edition of this software, but this free software convert only first 20 emails from each MBOX to NSF.