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Whitelisting the Email Notification Server

Last updated: Fri, 23 Oct 2020 18:23:39 GMT
iOFFICE Knowledge Center

Whitelisting the Email Notification Server

Depending on security settings at your facility, it may be necessary to whitelist the IP addresses assigned to the iOFFICE email server to receive notification emails from the application. iOFFICE handles all SMTP traffic using our SMTP servers. IP addresses can be provided for whitelisting, however we follow SPF and DKIM typically preventing this step being needed. Refer to the following list to determine what should be whitelisted to receive iOFFICE email notifications.

  1. From Address:
  2. Hostname:
  3. Address 1:
  4. Sendgrid IP:

Once you whitelist the name and IP addresses for the email notification server, email notifications should be successfully received by your users. If you have any questions, please call 713-526-1029 or send an email to

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