How does Flexmail pricing work?
Flexmail pricing is based on two things: the type of email you send (marketing or transactional) and the number of active contacts in your database. There are no hidden costs or per-email fees for marketing subscriptions. You pay a fixed monthly amount and send as much as you want.
Before you begin
Before choosing a plan, it helps to know roughly how many active contacts you have or expect to have. An active contact is any unique email address that can currently receive campaigns. Unsubscribed, unconfirmed, and blacklisted contacts do not count.
Marketing email pricing
Marketing subscriptions are priced by the number of active contacts in your account. You can choose from three plans:
- Start: for starting email marketers wanting to send a monthly newsletter and getting comfortable with email marketing best practices.
- Essential: for straightforward email marketing without advanced personalisation features
- Pro: adds AB testing, private interests, dynamic content, and surveys
- Premium: includes all Pro features plus phone support and additional capacity
Within each plan, you choose your contact tier based on how many active contacts you have.
Subscriptions can be renewed monthly or annually. Annual renewal comes with a 10% discount.
Support tip Not sure which plan is right for you? Check the full feature comparison on flexmail.be/en/pricing. If you're still unsure, the sales team at sales@flexmail.be can help you choose.
How many emails can I send?
With a marketing subscription, you can send unlimited emails to your active contacts every month. There are no per-send fees or email caps, just the fixed monthly price based on your contact count.
What counts as an active contact?
Only active contacts count towards your subscription tier. A contact is considered active when they have a confirmed email address and can receive campaigns. The following do not count:
- Unsubscribed contacts
- Contacts with unconfirmed status
- Blacklisted contacts
If your contact count drops below your current tier, for example after a cleanup of inactive
subscribers, you can downgrade to a lower tier at your next renewal.
Email credits (pay-as-you-go)
If you send emails infrequently and a monthly subscription isn't the right fit, you can use email credits instead. Credits work like stamps: each email sent to one contact costs one credit. Workflows and bounce retries also consume credits. Opt-in confirmation emails are free.
You can only start a campaign if your credit balance is equal to or higher than the number of planned recipients. Credits are sold in packs, with a minimum of 5,000 credits. Contact sales@flexmail.be for current pricing.
Attention Credits expire 12 months after purchase. Flexmail will notify you by email when your credits are approaching their expiration date.
Transactional email pricing
Transactional email is priced separately from marketing email. It's billed per message sent, regardless of your marketing subscription. It also doesn’t take into account the contacts in your marketing database. Contact sales@flexmail.be for transactional pricing details.
What happens if I reach my contact limit?
When your account reaches its contact limit, you can no longer add new contacts. If someone tries to subscribe through your opt-in form while the limit is reached, Flexmail notifies you by email so you can upgrade before anyone misses out.
You can upgrade to a higher contact tier at any time. The change takes effect immediately, and any unused days from your current billing period are credited towards your new subscription, so you never pay twice for the same time.

Common mistakes to avoid
Underestimating your contact count
A common reason for unexpectedly hitting the contact limit is forgetting that contacts in a non-active status still exist in your account, even if they don't count toward your tier. After a large import or a sign-up campaign, your active count can increase quickly. Check your active contact count in the account dashboard before starting any major list growth activity.
Choosing the wrong plan and missing features
If you want to run AB tests, use dynamic content, or create surveys, you need at least a Pro subscription. Selecting Essential to save money and then discovering key features are unavailable is a common frustration. Review the feature comparison at flexmail.be/en/pricing before committing.
Letting credits expire
If you use pay-as-you-go credits, keep track of the purchase date. Credits expire 12 months after purchase. Flexmail sends a warning email, but it's easy to miss. If you know you won't use your remaining credits in time, consider switching to a subscription.
Forgetting the annual discount
Monthly renewal is the default, but switching to annual billing gives you a 10% discount. If you're confident about your sending volume, annual renewal is an easy way to reduce your costs.
Next steps
Once you've chosen your plan and set up your account, here are the next things to do:
- Read "About the Flexmail subscriptions" for information on upgrading, cancelling, and switching between billing types
- Set up your brand kit, sender validation, and email authentication before sending your first campaign
- If you plan to send transactional emails, contact sales@flexmail.be to discuss transactional pricing and API access