Whitelisting the ZynBit.com domain

This document is designed to be shared with your IT department to ensure ZynBit communications and connections are whitelisted.  Whitelisting means ZynBit .EXE file, emails, IP addresses and API calls are trusted.

Email Delivery- ZynBit uses email verification for account activation and password reset.  Additionally, there are system generated communications for training and updates.  To ensure ZynBit emails are always delivered and never show up in your Junk Mail folder, your IT department should whitelist “zynbit.com” on the mail server.                     

Salesforce Authentication & IP Addresses

Salesforce has several mechanisms to prevent or allow connected apps to authenticate, please consult with your Salesforce Administrator if necessary.
Login IP Ranges-Salesforce allows administrators to restrict the IP addresses that are allowed to log into their Salesforce environment.  If you are utilizing Login IP Ranges, you will need to add ZynBit’s list of IPs to your configuration.

  • 23.96.1.109
  • 168.62.174.199
  • 23.96.6.200
  • 23.96.2.128
  • 23.96.5.238
  • 191.238.32.104
  • 191.238.32.154
  • 191.238.34.67
  • 191.238.35.12

Contact Manager (Group, and Professional editions) – Login IP Ranges are found under Security Controls > Session Settings (This will apply globally to all users).

Enterprise (Unlimited and Developer editions) – Login IP Ranges are managed on a per Profile basis, and will apply only to user’s with that Profile. Profiles can be managed from the Manage Users > Profiles section.
For more information, see the following  Salesforce KB article:

What is the difference between Network Access, Session Settings, and Profile-Based IP Restrictions
Note: If using Login IP Ranges, disable the Session Setting “Enforce login IP ranges on every request” as it can create conflicts with OAuth connected apps.

Trusted Domains – Some companies have monitoring services with their company firewall, which can block internet traffic to and from certain domains.  This will automatically block inbound and outbound traffic for unrecognized domains.  ZynBit for Outlook and Gmail use the following domains.

If you are experiencing issues related to ZynBit logins, please share this document with your IT department and request they add the domains below to the trusted sites list.  For Outlook users, you can first try adding these ZynBit domains to your trusted sites via internet explorer.
https://www.zynbit.com – This is the primary domain.
https://app.zynbit.com – This is the primary site for the ZynBit web portal for both users and admins.
https://bits.zynbit.com – This is the API to authenticate to ZynBit for user login and subscription.  The API also provides email tracking and web tracking data for each ZynBit user.  Requests tracking pixels, link rewrites, email opens, link clicks and contact web visitor history.
https://crm.zynbit.com – This is for Gmail and Outlook Web App users, this site retrieves API wrappers (basic UI protocols) for the ZynBit Java Script plugins.

ZynBit IP Addresses for Firewall Whitelisting

  • 23.96.1.109
  • 168.62.174.199
  • 23.96.6.200
  • 23.96.2.128
  • 23.96.5.238
  • 191.238.32.104
  • 191.238.32.154
  • 191.238.34.67
  • 191.238.35.12

Proxy Servers – Some companies also use a proxy server to provide administrative control over internet content.  If your company uses a proxy server then the following exceptions for ZynBit should be added:
•    zynbit.com
•    *.zynbit.com