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Flowmailer joined Spotler Group in March 2020 and is now sold as Spotler SendPro. flowmailer.com redirects to the SendPro page.
- Best for
- Companies that send business-critical transactional email at volume and want EU-based delivery with templates and archiving
- Starting price
- €105 per month, billed yearly
- Free plan
- ✗ No
- Free trial
- ✓ Yes
Flowmailer is now Spotler SendPro. It is a transactional email platform: it sends the automated emails your systems trigger, such as order confirmations, password resets, invoices and shipping updates, and makes sure they reach the inbox. Spotler Group, a marketing software group, acquired Flowmailer in March 2020.
What happened to Flowmailer?
Spotler Group completed the acquisition of Flowmailer's share capital in March 2020 to add transactional email to its products. Later the platform was renamed. Spotler now says "the Flowmailer company is now part of Spotler and the platform name is now Spotler SendPro", and that it continues to offer the same software, services and expertise. The flowmailer.com address redirects to the SendPro page.
Who is Spotler SendPro for?
SendPro suits companies whose applications, web shops or back-office systems send email that customers rely on. Spotler's G2 listing says developers and IT teams use it to add email sending to their applications, and marketing and e-commerce teams use it for transactional messages in the customer journey. It is not a newsletter tool: Spotler sells separate email marketing products for campaigns. On its G2 listing, Spotler says SendPro is built and hosted in Europe, which matters for teams with GDPR requirements.
What are SendPro's main features?
Sending through API, SMTP or SMS
You can send through a REST API or an SMTP relay, so an existing system can switch providers with small code changes. SendPro also handles SMS through SMPP, and can process incoming email.
Templates and attachments
Templates can be reused across several brands and in several languages. SendPro can generate attachments for each message, such as a PDF invoice, a CSV file or a calendar item.
Deliverability
A setup wizard configures SPF, DKIM and DMARC for your domains. SendPro retries soft-bounced addresses automatically and sends alerts when something goes wrong. For background, read why email deliverability matters.
Tracking and archive
Real-time analytics show opens and clicks, and every message is archived, which helps when a customer says they never got an invoice.
How much does Spotler SendPro cost?
Prices checked on 1 November 2026 on Spotler's pricing page. Spotler lists SendPro in euros only, with no US dollar price:
| Plan | Price | Emails | Adds |
|---|---|---|---|
| SendPro Basic | €105.00/month | 25,000 a month | Templates, tracking, archive, setup wizard |
| SendPro Premium | €315.00/month | 25,000 a month | Unlimited sources, domains and users, audit log, sandbox |
Spotler bills these prices yearly, not monthly, and they exclude VAT and onboarding. Higher volume tiers cost more. A 30-day free trial gives access to premium features, up to 100 test emails and up to three colleagues. There is no free plan.
What do users say about Spotler SendPro?
There is too little public review data to summarize. On G2, Spotler SendPro had only 3 reviews, with an average of 4.8 out of 5, at the time of checking.
When should you choose an alternative?
- You send newsletters and campaigns, not system emails. Use an email marketing tool instead.
- You send low volumes. At €105 a month billed yearly for the entry plan, SendPro is priced for businesses with steady transactional volume.
- You are still planning your emails. Our guide to creating transactional email covers what to send and when.
Key features
- API and SMTP sending. Send through a REST API or SMTP relay, and SMS through SMPP, with all traffic going through the same templates, tracking and archive.
- Templates. Reusable templates for several brands, with support for multiple languages.
- Dynamic attachments. Generate PDFs, CSV files and calendar items for each message, such as an invoice attached to an order email.
- Authentication setup. A wizard sets up SPF, DKIM and DMARC for your sending domains.
- Tracking and archive. Real-time analytics on opens and clicks, a message archive, alerts and automatic retries for soft bounces.
- Incoming email handling. Process inbound messages, such as replies to system emails, in the same platform.
Spotler SendPro pricing
| Plan | Price | Notes |
|---|---|---|
| SendPro Basic | €105.00 per month for 25,000 emails a month, billed yearly | Template options, SPF, DKIM and DMARC setup wizard, open and click tracking, message archive, dynamic attachments such as PDFs and incoming email handling. Higher volume tiers cost more. Priced in euros. |
| SendPro Premium | €315.00 per month for 25,000 emails a month, billed yearly | Adds unlimited sources, domains and users, an onboarding manager, an audit log and a sandbox. Priced in euros. |
| Free trial | Free for 30 days | Premium features, up to 100 test emails and up to three invited colleagues. |
Spotler SendPro FAQ
What happened to Flowmailer?
Spotler Group completed its acquisition of Flowmailer in March 2020. Spotler says the Flowmailer company is now part of Spotler and the platform is now called Spotler SendPro, and that it still offers the same transactional email software and services.
How much does Spotler SendPro cost?
On 1 November 2026 Spotler listed SendPro Basic at €105.00 per month and SendPro Premium at €315.00 per month, each for 25,000 emails a month. Prices are billed yearly and exclude VAT and onboarding. Higher volumes cost more.
Is SendPro for newsletters?
No. SendPro is for transactional email, such as order confirmations, password resets and invoices. For newsletters and campaigns, Spotler sells separate email marketing products.