Transactional email

The best deliverability for your most important emails

I want to send emails for free

Or compare our packages

No credit card required Easy set-up 30-day trial version

Clear documentation, great deliverability, at an affordable price

Delivery within seconds

Immediate sending for your time-sensitive communication

45 days’ data retention

Flexmail keeps all content, metadata and tracking information for you for 45 days

A powerful email API

Easy integration, reliable deliverability and clear documentation: Set up your integration easily and fast

Separate email streams

Transactional and promotional emails are sent over parallel but entirely separate infrastructures

Transactional emails that you see every day

Payment reminder emails

Shipping notification emails

Welcome emails

Start sending in minutes

Save development time with unified email functionality. We handle the complexity of deliverability, emails, and email clients that shape the global email landscape, so your teams can build what you need on one platform.

Try now for free

Or read the documentation

Curl

curl -X POST https://email-api.flexmail.eu/messages
    --user <YOUR_ACCOUNT_ID>:<YOUR_PERSONAL_ACCESS_TOKEN>
    --header 'Content-Type: application/json'
    --data-raw '{
        "recipient": {
            "address": {
                "email_address": "john.doe@flexmail.be",
                "name": "John Doe"
            }
        },
        "from": {
            "email_address": "hello@communication.flexmail.be",
            "name": "Flexmail"
        },
        "subject": "My first message",
        "content": {
            "html": "Hello world!"

        }
    }

Tracking and analytics capabilities

Utilise the robust tracking and analytics capabilities of our API to gain real-time insights into the performance of your transactional emails. Optimise strategies based on user behavior and engagement.

User interaction and engagement

Deploy triggered transactional emails to engage users precisely when they need it most. Keep them informed, engaged, and satisfied with automated, targeted communication.

Compliance with email standards

Ensure compliance with email authentication standards such as SPF, DKIM, and DMARC. Our API facilitates adherence to industry best practices, enhancing the deliverability and security of your transactional emails.

Your questions answered

What is a transactional email?

Transactional emails are one-to-one messages sent in response to a user interaction, such as placing an order or requesting a password. These emails are essential for your recipient and should, therefore, arrive in your recipient's inbox almost immediately and reliably.

What is the difference between a transactional email and a marketing email?

Transactional emails are activated by the recipient themselves and typically do not require an unsubscribe link. Unlike marketing emails, they are primarily informational. However, this also means significant opportunities for marketers. All communication from your brand is perceived by your customer. They expect at least an equally good experience. Add to that the fact that transactional emails generally achieve the highest open rates (because your recipient expects them), and you realise why they are an essential part of your email communication.

What are examples of transactional emails?

In contrast to promotional emails, which distribute the same content in bulk to many recipients simultaneously, transactional emails are hyper-personalised and typically sent one-to-one. Examples of transactional emails include:

Account activation emails
Emails with content items such as whitepapers or eBooks
Event tickets or reservation confirmations
'Thank you' emails for completing an action, such as booking an appointment or renewing a subscription
Account details (such as password resets)
Login emails
Account activity emails (someone has shared something with you, tagged you in a photo, etc.)
Billing emails
Order confirmations
Shipping confirmations for packages
User invitations
Various types of notifications

Why opt for transactional emails at Flexmail?

With the Flexmail email API, you benefit from our high-quality delivery infrastructure with its well-known deliverability. We carefully separate all transactional emails from marketing emails and retain all your content history and message events for 45 days. Our clear documentation and killer support are, of course, included. On top of that, you're mailing with a Belgian and GDPR-compliant platform.

Would you like to try Flexmail?

A European and GDPR-compliant platform. Powerful features. Easy to use. Relevant emails to your target audience. Finally, an email software that works for you.

I want to send emails for free

Or compare our packages

No credit card required Easy set-up 30-day trial version