Editing Mail server IP ranges

```mediawiki
'''Navigation:''' [[Main_Page]] > [[Settings]] > [[Email]] > Mail server IP ranges

== Mail server IP ranges ==

=== Introduction ===
The '''Mail server IP ranges''' feature in ActiveCampaign plays a crucial role for users who send emails to contacts within organizations that employ email filtering systems. When sending emails to a group of recipients from the same company or contacts using a common domain as the "From" email address, there's a risk that your messages may be blocked by the company's email firewall. To ensure successful delivery of your communications, it's essential to add specific IP ranges to the organization's safe sender list.

=== How to Access this Feature ===
To access the '''Mail server IP ranges''' settings in ActiveCampaign, follow these steps:
1. Log in to your ActiveCampaign account.
2. In the left sidebar, click on the '''Settings''' menu.
3. From the Settings menu, click on '''Email''' to open the relevant options.
4. Locate the '''Mail server IP ranges''' section for further information.

=== Step-by-Step Instructions ===
1. **Log in**: Start by logging into your ActiveCampaign dashboard.
2. **Navigate to Settings**: Click on the '''Settings''' option in the left-hand sidebar.
3. **Select Email**: In the settings menu, choose '''Email''' to access various email configuration options.
4. **Find Mail server IP ranges**: Within the Email settings, locate the section titled '''Mail server IP ranges'''. 
5. **Review IP Ranges**: The IP ranges are displayed in a table format. You can find the following CIDR ranges:
   - **173.236.20.0/24** (Start: 173.236.20.2; End: 173.236.20.254)
   - **192.92.97.0/24** (Start: 192.92.97.2; End: 192.92.97.254)
   - **52.128.40.0/21** (Start: 52.128.40.0; End: 52.128.47.255)
   - **217.8.118.0/24** (Start: 217.8.118.0; End: 217.8.118.255)
   - **103.229.233.0/24** (Start: 103.229.233.1; End: 103.229.233.255)
   
   Make sure to communicate this information with the IT department of the organization whose firewall may be blocking emails from ActiveCampaign.

6. **Transaction Emails**: It's important to note that some transactional messages from ActiveCampaign, such as password resets and login verification emails, may be sent from a different service known as Postmark. If needed, refer to Postmark's IP ranges for further instructions.

=== Configuration Options and Settings ===
While configuring the '''Mail server IP ranges''', users are encouraged to provide this information to their IT teams to have it added to the safe sender list. The key configurations involve:
- Adding the aforementioned '''CIDR IP ranges''' to the safe sender list of the respective organization.
- Understanding that transactional messages from ActiveCampaign may utilize different servers such as Postmark.

=== Best Practices and Tips ===
To ensure optimal email deliverability and avoid potential disruptions:
- **Collaborate with IT**: Always work closely with your IT department to ensure that the necessary IP ranges are whitelisted.
- **Regularly Update**: Keep track of any changes in the IP ranges provided by ActiveCampaign, and communicate these promptly to your IT team.
- **Monitor Deliverability**: Regularly observe email campaigns for any bounce rates or delivery issues and address them promptly by referring to the needed IP ranges.

=== Common Use Cases with Examples ===
1. **Sending Group Emails**: If you are sending newsletters or promotional emails to a corporate domain, provide the IP ranges to ensure messages are received.
2. **Transactional Emails**: For services such as password resets or account activation emails, ensure that Postmark's IP ranges are also considered for safe sending.
3. **Cross-Domain Communication**: Use these ranges when communicating with clients or partners who may have stricter email security protocols in place.

=== Troubleshooting ===
If you encounter issues with your emails being blocked, consider the following steps:
- **Check IP Whitelisting**: Confirm with the IT department that the provided IP ranges have been correctly added to the safe sender list.
- **Verify Domain Blocks**: Ensure the domain is not blocking emails based on other criteria outside of IP ranges.
- **Use Postmark Support**: If you're dealing with transactional emails, refer to Postmark's support resources for assistance with whitelisting their IP ranges.

=== Related Features ===
For more related functionalities, consider exploring:
- [[Settings]] for general settings configurations.
- [[Email]] for email related settings and features.

=== FAQ ===
'''Q1: What should I do if my emails are still being blocked?'''
A1: Verify that the IT team has whitelisted the correct IP ranges and consider checking additional filters they may have implemented.

'''Q2: Why are some emails sent from ActiveCampaign routed through Postmark?'''
A2: ActiveCampaign may send transactional emails via Postmark, which requires separate IP configuration for deliverability.

'''Q3: How often should I check the IP ranges?'''
A3: Regularly check for updates, particularly after significant platform changes or announcements from ActiveCampaign.

'''Q4: Is this feature available on all plans?'''
A4: Yes, the '''Mail server IP ranges''' feature is available across all ActiveCampaign plans: Starter, Plus, Pro, and Enterprise.

'''Q5: Can I use these IP ranges for other email services?'''
A5: These IP ranges are specifically for ActiveCampaign; consult the respective email service provider for their own IP ranges.

'''Q6: How can I ensure my emails reach inboxes?'''
A6: Work with your IT department to whitelist the necessary IP ranges, monitor email performance, and adjust strategies as needed.

'''Q7: Where can I get more information about Postmark's IP ranges?'''
A7: Learn more about Postmark's IP ranges for firewalls by visiting the [Postmark support article](https://postmarkapp.com/support/article/800-ips-for-firewalls).

By understanding and implementing the above guidelines for '''Mail server IP ranges''', you can significantly enhance your email deliverability and ensure your communications reach their intended recipients.
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