Email Delivery Issues (IP-Based Filtering)

At Biller Genie, reliable email delivery is critical for invoices, payment confirmations, and account access. If you, your team, or your customers are not receiving emails from Biller Genie, the most common cause is company email or network security systems blocking messages based on sending IP addresses.

This type of filtering can affect more than just login emails and may impact invoices, CC copies, customer notifications, and other system-generated messages.

WARNING!

Company email security systems can block Biller Genie emails without placing them in spam or junk folders. If this occurs, invoices and login emails may never reach their destination.

To ensure reliable delivery, Biller Genie sending IP addresses must be explicitly allowlisted in your email or security system.

What Emails Can Be Affected

IP-based email filtering can interfere with multiple types of Biller Genie emails, including:

Invoices sent to customers

CC copies of invoices sent to you or your team

Payment confirmation emails

Login emails such as magic links or verification codes

System notifications and alerts

If any of these emails are missing, delayed, or delivered inconsistently, IP-based filtering is a likely cause.

Common Signs of IP-Based Blocking

You may be experiencing IP-based email blocking if customers report that they never received an invoice, or if you are not receiving CC copies of invoices that were sent successfully.

Other common indicators include emails arriving too late to be usable, login links expiring before they can be clicked, or messages delivering to personal email addresses such as Gmail or Yahoo but failing to reach company or work email addresses.

This issue often begins after changes to email security settings, firewall rules, spam-filter configurations, or Microsoft 365 or Google Workspace environments.

Resolving Email Delivery Issues

This process will be completed in two parts:

Part A: Allowing inbound email from Biller Genie
Part B: Verifying successful email delivery

Part A: Allowing Inbound Email From Biller Genie

Step 1

Identify whether you have administrator access to your company’s email or security system.

If you do not have administrator access, you will need to contact your IT team or email provider to complete the remaining steps.

Step 2

Allow inbound email from Biller Genie by allowlisting the sending IP ranges listed below.

Allowlisting ensures emails are delivered immediately and are not delayed, quarantined, or blocked by security systems.

Step 3

Add the following Biller Genie sending IP ranges to your email or security system allowlist:

These IP ranges must be explicitly allowed, not simply monitored.

When possible, allow them at the SMTP or inbound connection level. IP reputation filtering, rate limiting, throttling, sandboxing, and delayed delivery rules should be bypassed for these addresses.

Email Provider Configuration Examples

Use the section below that matches your email provider.

Google Workspace (Gmail)

Requires Google Workspace administrator access.

Sign in to admin.google.com

Navigate to Apps > Google Workspace

Select Gmail, then open Spam, phishing, and malware

Locate the Email allowlist section and click Add

Add each IP range individually

Enable Bypass spam filtering for allowlisted IPs

Save your changes

Changes may take up to one hour to apply.

Microsoft 365 / Outlook

Requires Microsoft 365 administrator access.

Navigate to https://security.microsoft.com

Select Email & collaboration

Open Policies & rules, then Threat policies

Select Anti-spam policies

Edit the inbound anti-spam policy (typically named Default)

Scroll to Allowed and blocked senders

Add the IP ranges under Allowed IP addresses

Save the policy

Changes may take 30 to 60 minutes to apply.

GoDaddy Email (Advanced Email Security)

Availability depends on your GoDaddy email plan.

Log in to your GoDaddy Email & Office Dashboard

Open Advanced Email Security

Navigate to Settings

Select Allow List or Safe List

Choose IP Address and add each IP range

If you do not see an option to allowlist IP addresses, contact GoDaddy Support and request that inbound email from these IP ranges be allowed.

Squarespace Email

Squarespace email is hosted through Google Workspace.

To allow the IP ranges, follow the Google Workspace steps above. If you do not have administrator access, contact Squarespace Support for assistance.

When IT Assistance Is Required

You will need help from your IT team or email provider if:

You do not have administrator access

Your company uses advanced email security tools

Invoices are not reaching customers

Emails are missing without appearing in spam or junk folders

You may send the message below to your IT team:

Please allow inbound email from the following sending IP ranges to ensure reliable delivery of Biller Genie invoices and notifications:

87.253.232.0/21
185.189.236.0/22
185.211.120.0/22
185.250.236.0/22

Part B: Confirming Email Delivery

Step 1

Send a test invoice to yourself and confirm that you receive it promptly.

Step 2

Verify that CC copies are delivered correctly if they are enabled.

Step 3

Request a login email (magic link or verification code) to confirm that account access emails are working as expected.

If emails arrive promptly, the issue has been resolved.

Still Having Trouble?

If emails are being delivered but are routed to junk or spam folders, review Email Delivery Best Practices for guidance on optimizing subject lines and email content.

If emails are still not being delivered after allowlisting the IP ranges, contact the Biller Genie support team at support@billergenie.com and include:

Your email provider

Confirmation that the IP ranges were allowlisted

Whether the issue affects merchants, customers, or both

Our support team is happy to assist and can coordinate directly with your IT provider if needed.