> Enrich.chat gives AI agents verified work emails and mobiles. To use it from an agent, read https://enrich.chat/agents.md . This is the Markdown version of https://enrich.chat/companies-using/rackspace-mailgun/ # Companies using Mailgun (Rackspace) Mailgun is an email delivery service and API for developers that was once owned by Rackspace. Here are the organizations where it was detected, where it is most common and how to reach the people who run it. By Enrich.chat Editorial. Updated October 21, 2026. **Short answer:** Organizations that use Mailgun (Rackspace) include Dunkin'​, Essilor Group, Taco Bell, Air Force Civilian Service and Kaufland. Mailgun (Rackspace) is in the email and productivity category; below are the industries where it is most common, how adoption changes with size and the tools found alongside it. ## What is Mailgun (Rackspace)? Mailgun is an email delivery service and API for developers that was once owned by Rackspace. It sits in the email and productivity category and is usually owned by engineering and DevOps leaders. ## Which companies use Mailgun (Rackspace)? Organizations where Mailgun (Rackspace) was detected include Dunkin'​, Essilor Group, Taco Bell, Air Force Civilian Service and Kaufland. The table lists a selection of larger ones in alphabetical order; names link to company profiles. | Company | Industry | Size | | --- | --- | --- | | [Air Force Civilian Service](https://enrich.chat/company/air-force-civilian-service/) | Government administration | 100,000+ | | [Ansell](https://enrich.chat/company/ansell/) | Mechanical or industrial engineering | 100,000+ | | [APM Terminals](https://enrich.chat/company/apm-terminals/) | Logistics and supply chain | 50,000 to 100,000 | | [AstraZeneca](https://enrich.chat/company/astrazeneca/) | Pharmaceuticals | 50,000 to 100,000 | | [BDO](https://enrich.chat/company/bdo/) | Accounting | 50,000 to 100,000 | | [Chick-fil-A Corporate Support Center](https://enrich.chat/company/chick-fil-a-corporate-support-center/) | Restaurants | 50,000 to 100,000 | | [Decathlon](https://enrich.chat/company/decathlon/) | Sporting goods | 100,000+ | | [Dunkin'​](https://enrich.chat/company/dunkin/) | Food and beverages | 100,000+ | | [Essilor Group](https://enrich.chat/company/essilor-group/) | Mechanical or industrial engineering | 100,000+ | | [Food Lion](https://enrich.chat/company/food-lion/) | Retail | 50,000 to 100,000 | | [GE Aerospace](https://enrich.chat/company/ge-aerospace/) | Aviation and aerospace | 100,000+ | | [Help at Home](https://enrich.chat/company/help-at-home/) | Hospitals and health care | 50,000 to 100,000 | | [IHH Healthcare](https://enrich.chat/company/ihh-healthcare/) | Hospitals and health care | 50,000 to 100,000 | | [Jimmy John's](https://enrich.chat/company/jimmy-johns/) | Restaurants | 25,000 to 50,000 | | [Kaufland](https://enrich.chat/company/kaufland/) | Retail | 100,000+ | | [OPPO](https://enrich.chat/company/oppo/) | Telecommunications | 50,000 to 100,000 | | [Otis Elevator](https://enrich.chat/company/otis-elevator/) | Consumer services | 50,000 to 100,000 | | [Pfizer](https://enrich.chat/company/pfizer/) | Pharmaceuticals | 100,000+ | | [Publicis](https://enrich.chat/company/publicis/) | Marketing and advertising | 100,000+ | | [Raízen](https://enrich.chat/company/ra-zen/) | Oil and energy | 25,000 to 50,000 | | [Renault](https://enrich.chat/company/renault/) | Automotive | 100,000+ | | [Renault Group](https://enrich.chat/company/renault-group/) | Automotive | 100,000+ | | [Sherwin Williams](https://enrich.chat/company/sherwin-williams/) | Chemicals | 50,000 to 100,000 | | [Sobeys](https://enrich.chat/company/sobeys/) | Retail | 100,000+ | | [Spirit Halloween](https://enrich.chat/company/spirit-halloween/) | Retail | 50,000 to 100,000 | | [Sutherland Global Services](https://enrich.chat/company/sutherland-global-services/) | Information technology and services | 50,000 to 100,000 | | [Taco Bell](https://enrich.chat/company/taco-bell/) | Restaurants | 100,000+ | | [TUI](https://enrich.chat/company/tui/) | Hospitality | 50,000 to 100,000 | | [UBS](https://enrich.chat/company/ubs/) | Financial services | 100,000+ | | [WSP](https://enrich.chat/company/wsp/) | Professional training and coaching | 50,000 to 100,000 | ## Which industries use Mailgun (Rackspace) most? The bars show, for each industry, the share of listed organizations where Mailgun (Rackspace) was detected. **Figure: Where Mailgun (Rackspace) shows up most often.** Bars for the share of organizations in each of 8 industries where Mailgun (Rackspace) was detected, from Apparel and fashion at 9% down to Restaurants at 6%. *Share of listed organizations in each industry where Mailgun (Rackspace) was detected.* ## Do larger companies use Mailgun (Rackspace) more? For each size range, the column shows the share of listed organizations where Mailgun (Rackspace) was detected. **Figure: Mailgun (Rackspace) by company size.** Six columns, one per size range from 2,000 to over 100,000 employees, showing the share of organizations where Mailgun (Rackspace) was detected: 2-5K 5%, 5-10K 5%, 10-25K 4%, 25-50K 4%, 50-100K 3%, 100K+ 5%. *Share of listed organizations in each size range where Mailgun (Rackspace) was detected.* ## What tools go with Mailgun (Rackspace)? Among the organizations that use Mailgun (Rackspace), these tools stand out: each is detected more often alongside Mailgun (Rackspace) than across all the organizations listed. The tick on each bar marks that wider average. **Figure: Tools that stand out among Mailgun (Rackspace) users.** Bars for the share of Mailgun (Rackspace) users that also use each tool, with a tick for the share across all listed organizations: New Relic 29% against 19%, Gmail 26% against 18%, Zendesk 21% against 13%, SendGrid 15% against 9%, WP Engine 14% against 7%, Mailchimp SPF 13% against 6%, Mandrill (Mailchimp) 13% against 6%, Gravity Forms 11% against 7%. *Share of organizations using Mailgun (Rackspace) where each tool was also detected. The tick marks the share across all listed organizations.* [New Relic](https://enrich.chat/companies-using/new-relic/)[Gmail](https://enrich.chat/companies-using/gmail/)[Zendesk](https://enrich.chat/companies-using/zendesk/)[SendGrid](https://enrich.chat/companies-using/sendgrid/)[WP Engine](https://enrich.chat/companies-using/wp-engine/)[Mailchimp SPF](https://enrich.chat/companies-using/mailchimp-spf/)[Mandrill (Mailchimp)](https://enrich.chat/companies-using/mailchimp-mandrill/)[Gravity Forms](https://enrich.chat/companies-using/gravity-forms/) ## Mailgun (Rackspace) by industry Open an industry to see the organizations in it that use Mailgun (Rackspace). [Information technology and services](https://enrich.chat/companies-using/rackspace-mailgun/information-technology-and-services/)[Retail](https://enrich.chat/companies-using/rackspace-mailgun/retail/)[Hospitals and health care](https://enrich.chat/companies-using/rackspace-mailgun/hospitals-and-health-care/) ## How do you reach the people who run Mailgun (Rackspace)? The tool tells you what a company already runs; the people to talk to are usually engineering and DevOps leaders. Pick an account from the table, then ask your AI agent for them. ```text Use www.enrich.chat to find the engineering and DevOps leaders at [company], with titles and verified work emails ``` Check any other company with the free [tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/), or find a company's [email format](https://enrich.chat/tools/email-format-finder/). ## Frequently asked questions ### What companies use Mailgun (Rackspace)? Organizations where Mailgun (Rackspace) was detected include Dunkin'​, Essilor Group, Taco Bell, Air Force Civilian Service and Kaufland. The page lists a selection of larger ones with links to their profiles. ### Which industries use Mailgun (Rackspace) most? Mailgun (Rackspace) shows up most often in apparel and fashion, health, wellness and fitness and nonprofit organization management. ### How is Mailgun (Rackspace) usage detected? From public signals: code and tags on a company's website, the HTTP headers its servers send, and DNS records. A detected tool shows it was seen, not what the company pays for it. ### Who should I contact at a company that uses Mailgun (Rackspace)? Usually engineering and DevOps leaders. Ask your AI agent to use www.enrich.chat to find people in those roles at the account, with verified work emails. ## Try this prompt Find the people who run Mailgun (Rackspace) ```text Use www.enrich.chat to find the engineering and DevOps leaders at [company], with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [Companies using Microsoft 365](https://enrich.chat/companies-using/microsoft-365/) - [Companies using Microsoft Outlook](https://enrich.chat/companies-using/microsoft-outlook/) - [Companies using Amazon SES](https://enrich.chat/companies-using/amazon-ses/) - [Companies using Google Workspace](https://enrich.chat/companies-using/google-workspace/) - [Companies using Gmail](https://enrich.chat/companies-using/gmail/) - [Companies using SendGrid](https://enrich.chat/companies-using/sendgrid/) - [Companies using Mailchimp SPF](https://enrich.chat/companies-using/mailchimp-spf/) - [Companies using Mandrill (Mailchimp)](https://enrich.chat/companies-using/mailchimp-mandrill/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)