Email Archiving Software

SolarWinds Mail Assure
  9
Email security & safety tool with archiving
ArcTitan Email Archiving
  3
Secure Email Archiving. Compliant, Fast, Secure & Office365
Topsec Email Security
  63
Cloud based email and web security solution
Storagepipe
  1
Automating archiving older emails
Sonian
Hosted email archiving software