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The following table provides the recommended and minimum system requirements for running IMSS.

System Requirements

Specification
Description
Operating System
  • Red Hat™ Enterprise Linux™ 6 Servers (6.0, 6.1, 6.2, 6.3, 6.4, 6.6, 6.7, 6.8, 6.9, 6.10)
  • Red Hat Enterprise Linux 7 Servers (7.0, 7.1, 7.2, 7.3, 7.4, 7.5, 7.6, 7.7)
  • Red Hat Enterprise Linux 8 Servers (8.0, 8.1, 8.2, 8.3)
CPU
  • Recommended:
    8-core Intel(TM) Xeon(TM) processor or equivalent
  • Minimum:
    Dual-core Intel(TM) Xeon(TM) processor or equivalent
Memory
  • Recommended:
    8 GB RAM
  • Minimum:
    4 GB RAM
Disk Space
  • Recommended:
    250 GB total
    The following recommendations are based on 500,000 messages/day, a 50% quarantine rate, and logs preserved for a month.
    • 10 GB for mail storage
    • 50 GB or more for the Admin database
    • 20 GB or more for the EUQ database
    • 40 GB or more for the working quarantine folder
  • Minimum:
    80 GB total
    Note
    Note
    The default location for the Admin database and EUQ database is /var/imss. The Default location for the working quarantine folders is /opt/trend/imss/queue/.
Swap Space
Recommended:
2 GB swap space
Browser
  • Microsoft Internet Explorer(TM) 10, 11 or Edge 15063
  • Firefox 53
PostgreSQL
Version 9.6.3
LDAP server
  • Microsoft Active Directory 2012 R2, 2016
  • IBM™ Lotus Domino 8.5, 9.0
  • Sun One LDAP 5.2 or above
  • OpenLDAP 2.4.44
MTA
  • Postfix™ 2.6 or above
  • Sendmail™ 8.14 or above
Linux Libraries (for all platforms)
  • Red Hat 6 (32-bit/64-bit): net-tools; bind-utils; lsof; wget; perl; fontconfig.i686; cyrus-sasl-gssapi.i686; cyrus-sasl-md5.i686; glibc.i686
  • Red Hat 7.0-7.2: nss-softokn; net-tools; bind-utils; lsof; wget;perl; fontconfig.i686; cyrus-sasl-gssapi.i686; cyrus-sasl-md5.i686; glibc.i686
  • Red Hat 7.3: nss-softokn; lsof; wget; perl; fontconfig.i686;cyrus-sasl-gssapi.i686; cyrus-sasl-md5.i686; glibc.i686
  • Red Hat 7.4: glibc.i686; bind-utils;lsof; wget;perl; fontconfigi686; cyrus-sasl-gssapii686; cyrus-sasl-md5.i686;
  • Red Hat 7.5: glibc.i686; net-tools; bind-utils; lsof; wget; perl; fontconfig.i686; cyrus-sasl-gssapi.i686; cyrus-sasl-md5.i686;
  • Red Hat 7.6: glibc.i686; net-tools; bind-utils; lsof; wget; perl; fontconfig.i686; cyrus-sasl-gssapi.i686; cyrus-sasl-md5.i686;
  • Red Hat 7.7: glibc.i686; net-tools; bind-utils; lsof; wget; perl; fontconfig.i686; cyrus-sasl-gssapi.i686; cyrus-sasl-md5.i686;
Note
Note
To enable support for Red Hat Enterprise Linux 7.5, 7.6 or 7.7 servers, you must install IMSS 9.1 hot fix 1211 or any later hot fixes.