EFS 5.61.08 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The program's installer is commonly called Efs.exe, PCEFS80.EXE or RunEDD.exe etc.
This free program is a product of Chimera Computing Ltd. The software lies within Internet & Network Tools, more precisely Network Tools.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The following versions: 5.6, 5.0 and 4.0 are the most frequently downloaded ones by the program users.
From the developer:
EFS is a "POP3 Connector" (also known as "mail forwarding" or "mail relay" software etc). It was originally designed to provide a cost-effective way of retrieving Internet based mail and delivering any messages to an internal mail server, such as Microsoft Exchange Server, Lotus Notes/Domino (or in fact any RFC compliant SMTP mail server).
You may want to check out more software, such as SoftAmbulance EFS Recovery, EF Find or EF System Monitor, which might be related to EFS.