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Customer case studies

See how our customers are using Mailgun to improve their sending reputation and make sure their emails reach the inbox.

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Mailgun is our primary provider for email. We use Mailgun because it concentrates on transactional emails (of the sort that we send) rather than other mail services which are more geared towards bulk mailings. Other services end up sending massive amounts of emails for large mailing lists which causes periods of slow delivery. We are very vested in timely delivery, whereas most other services are concerned about not being blocked as spam. Mailgun is consistently fast.

PagerDuty is a SaaS-based alerting and on-call management system for IT professionals.


All email sent via UserVoice goes through Mailgun. Mailgun also handles incoming email for our ticket system. Handling incoming email is where Mailgun really shines. In particular: All emails are converted to UTF-8; There’s always a ‘plain’ (text only) version of the email sent to us, even if the original email only included HTML; They offer a ‘stripped-text’ field, which lets us easily see the new part of an email thread. Also, pretty great support.

UserVoice creates simple customer engagement tools that help companies understand and interact with their customers and build customer relationships that last.

The logo for UserVoice.

Expert services

Who's monitoring your email reputation?

Do you know who is daily monitoring your IPs and email sending reputation? Get an expert on your side with Mailgun's Deliverability Services. Don’t wait until you learn the hard way, you need to have someone daily looking out for your email deliverability reputation.


We use Mailgun to manage our email process for our core feature – the personal assistant. Millions of travel offers are checked and rated in realtime and integrated into our daily user emails. The recipient variables help us to personalize these emails for thousands of customers. The Mailgun service is easy to implement, offers useful statistics and gives us scaling possibilities for the future. Mailgun helps us to concentrate on our core competency – advanced travel booking intelligence.

VOGAYO is a travel booking platform that offers intelligent features like a tag-based search and a personal travel assistant with daily checked and rated offers.

The logo for Vogayo
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Quantum Response Network

Our previous partner was having serious issues coping with the volume of emails that we send out each day. We also felt that we didn’t have a clear idea of where we stood with our deliverability.

Graham Everitt, Director Quantum Response Network

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