Proxmox Mail Gateway - Protect mail server against spam, viruses and malware with Proxmox Mail Gateway security for businesses, government, education and non-profit organizations.
Google Docs - Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.
SpamAssassin - Use this program to "Unspam" your mailbox(es).
Adobe Acrobat DC - Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit and sign PDF files at your desk or on the go.
Rspamd - Rspamd is an advanced spam filtering system that allows evaluation of messages by a number of rules...
Wondershare PDFelement - All-in-one PDF editor