Limit maximum number of attachments in email

  • Release version: Australia
  • Updated March 12, 2026
  • 1 minute to read

    • Configure the number of inbound email attachments allowed per Email [sys_email] record on your instance.

    Use the glide.email.inbound.max_attachment_count system property to control the maximum number of inbound email attachments allowed per Email [sys_email] record on your instance.

    Set the value of this property to 30 or less to help avoid instance performance degradation.

    More information

    Attribute Description
    Configuration name glide.email.inbound.max_attachment_count
    Configuration type System Properties (/sys_properties_list.do)
    Data type integer
    Recommended value 30 or less
    Default value 30
    Fallback value 50
    Category File and resources
    Security risk
    • Severity score: 5.3
    • CVSS score: Medium
    • Security risk details: A large number of attachments in inbound emails can cause instance performance degradation.
    Dependencies and prerequisites None
    References