Adding the Email Continuity IP ranges to your firewall and mail server allowlists

Last published : Apr 17, 2026
You must add the Email Continuity IP ranges that you obtained from Arctera Services & Support to your firewall allowlist and your mail server allowlist, as appropriate.
To add the Email Continuity IP ranges to your firewall and mail server allowlists
  1. Log on to the control panel for your firewall or mail server.
  2. Add the IP ranges for your Arctera Insight Archiving instance to port 25 (SMTP).
  3. If Email Continuity is to flush back messages to your mail server rather than to a relay server, add the same IP address range to your Exchange receive connector or to your Domino allowed hosts. This step enables the mail server to relay the flushed back messages on to your users.