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I'm not receiving Gladstone Marketing Emails?

Add Gladstone to your 'Allow List'

If you’re receiving one-to-one emails from your Regional Sales Manager but not our newsletters or updates, your organisation’s spam filter may be blocking our marketing emails.

This is a common issue in organisations with strict IT policies. Emails sent in bulk through platforms like HubSpot can sometimes be flagged as spam even when they’re genuine communications from trusted sources.

How to Fix This with Your IT Department

To make sure Gladstone updates land safely in your inbox, please share the following guidance with your IT team:

Whitelist Our Sending Domains and IP Addresses

Provide this information to your IT department:

Sending Domains:

  • gladstonesoftware.com
  • hubspotemail.net

HubSpot IP Ranges to Whitelist:
  • 54.174.60.0/23
  • 143.204.0.0/16
  • 18.208.124.0/23
  • 54.174.53.0/24

You can view the most current list directly from HubSpot’s email delivery documentation.

Add Us to Your Safe Senders List
Ask your IT team or email administrator to include our email addresses in your organisation’s “safe sender” list or “allow list”.

Review Third-Party Email Security Tools
If your organisation uses tools like Mimecast, Proofpoint, or Barracuda, these may require additional configuration to allow our HubSpot communications through.

Suggested Questions to Ask Your IT Team

  • Can you check if messages from @gladstonesoftware.com or HubSpot are being quarantined or flagged as spam?
  • Can we whitelist the IPs and domains used by HubSpot to ensure I receive communications from Gladstone?

By taking these steps, you’ll stay connected with important updates from Gladstone like product news, event invites, and useful tips for getting the most out of your leisure management system.

Also... Check Your Own Inbox Rules!

It happens to the best of us. You (or a helpful colleague) might’ve once set up an inbox rule to organise emails neatly into folders, like “Gladstone Marketing or Read Later” Trouble is, out of sight often means out of mind.

So have a peek in that folder… it might just be bursting with insights, updates, and invites you never knew you missed. (Kind of like finding a fiver in last winter’s coat.)