OTP in under 8 seconds, invoices in the primary inbox and confirmations with full traceability. Dedicated infrastructure for messages that can't afford mistakes.
Your code is 847291 — valid 5 min
OTPWe received your payment of $1,250,000
PaymentAccess from new device detected
AlertYour order #ORD-9471 has been processed
ConfirmationSLA: < 8 seconds
Dedicated IP infrastructure with maximum priority. Automatic fallover Email → SMS if not delivered in 10s.
SLA: < 30 seconds
PDF attachment up to 25MB per message with guaranteed delivery to the primary inbox. Full traceability of attachment downloads.
SLA: < 60 seconds
Dynamic variables per message: amount, date, reference, order number. Evidence with legally valid timestamp.
SLA: < 15 seconds
Simultaneous Email + SMS delivery on critical events. Automatic escalation to WhatsApp if no open in 30s.
From digital banking OTP to real-time shipping tracking, Opptima manages every critical notification.
Authentication code delivered in under 8 seconds. Dedicated maximum-priority IPs and automatic SMS fallover to guarantee frictionless authentication.
PDF attachment in the primary inbox with download traceability. Built for e-invoicing delivery compliance, with an exportable delivery log for your records.
Immediate post-payment notification with order number, amount and product details. Integration with e-commerce platforms via payment webhook.
Email + SMS simultaneous in under 15 seconds on unusual activity. Automatic escalation to WhatsApp if not opened, with read confirmation.
Real-time tracking: dispatch confirmation, in transit and delivered. Dynamic variables with tracking number, carrier and estimated date.
Date-based automation: renewal reminders, contract expiry or installment payment. Configurable flow with multiple alerts before the due date.
Every transactional notification is built to meet regulatory standards for electronic signatures, invoicing and data protection.
Many jurisdictions recognize the legal validity of data messages and electronic signatures. Opptima's delivery timestamps, combined with server receipt confirmation, provide timestamped, audit-ready records recognized in many jurisdictions as valid evidence of electronic communication.
Electronic invoicing regulations often require the invoice to be delivered to the recipient in the correct format (e.g., XML + PDF graphic representation). Opptima guarantees delivery with download traceability, meeting notification requirements for authorized invoicing-delivery providers.
Personal data included in notifications (name, amount, transaction number) is protected under applicable data protection regulations. Opptima guarantees TLS-encrypted transmission, access restricted by transaction purpose and deletion in line with the retention policy.
Choose according to your monthly volume. All include guaranteed SLA, full traceability and priority technical support.
| Feature | 50K | 100K | 200K | 500K | 1M |
|---|---|---|---|---|---|
| Dedicated IPs for transactional | |||||
| Per-message traceability | |||||
| Automatic fallover Email → SMS | |||||
| SLA guaranteed by contract | |||||
| PDF attachment up to 25MB | |||||
| 24/7 priority support | |||||
| Assigned Email Specialist | |||||
| Price / mo | $59.99 USD | $118.99 USD | $238.99 USD | $942.99 USD | $1,427.99 USD |
All prices in USD. Monthly or annual billing with 20% discount. SMS and WhatsApp billed by additional volume.
If your sending requirements exceed our standard packages or you have specific technical needs, we design an exclusive architecture and pricing plan for your operation.
Contact Enterprise SalesBanks, fintechs and e-commerce that trust their transactional infrastructure to Opptima
Client names protected under confidentiality agreement
“We used to have 3% OTP failures blocking authentications. With Opptima we dropped to 0.02% and the < 8-second SLA is met in 99.8% of cases.”
Camilo Toro
CTO, Digital Credit Fintech
“Electronic invoicing with PDF attachment in the primary inbox and a download log solved the problem of customers claiming not to receive their invoices. We now have full traceability.”
Owen Pierce
Finance Manager, B2B SaaS
“Fraud alerts arrive in under 10 seconds. The SMS fallover guarantees the customer is always notified. This prevented more than $80M in fraud losses over the past year.”
Julian Cross
Security Director, Digital Bank
Talk to a specialist and we will audit your current transactional infrastructure in 24 hours.
Everything you need to know about transactional notifications with Opptima.
The average delivery time for an OTP with Opptima is under 8 seconds from the moment it's sent. This is achieved through dedicated IPs with maximum priority on Gmail, Outlook and Yahoo receiving servers, and separate sending queues for critical transactional messages. In 99.8% of cases the OTP arrives before the user finishes reading the instruction to enter it.
Yes. Opptima supports PDF attachments up to 25MB per message on the Transactional SMTP channel. You can generate the PDF dynamically in your system and attach it when sending via API. The invoice lands in the primary inbox thanks to the dedicated IP infrastructure and monitored domain reputation. Opptima records whether the recipient downloaded the attachment, giving you complete traceability.
Opptima has a configurable automatic fallover system: if the email is not delivered to the recipient's server within the first 10 seconds, the system automatically triggers an SMS to the user's phone number with the same code. This behavior is configurable by notification type and you can set the wait time and the fallover channel. You can also configure WhatsApp as a third backup channel.
Opptima's infrastructure is designed with multi-layer redundancy: servers in multiple availability zones, backup IPs activated automatically if the primary IP experiences reputation degradation, load balancing across sending routes, and active 24/7 monitoring with automatic alerts. The 99.9% uptime corresponds to less than 9 hours of downtime per year and is backed by contractual SLA in enterprise plans.
Yes. Opptima allows dynamic variables in each transactional notification: name, transaction number, amount, date, reference, order number, invoice number, OTP code, or any field in your system. Variables are inserted via API when the message is sent. There is no limit to the number of variables per message, and you can include conditional logic based on field values.
Yes. Opptima's logs include: UTC timestamp of when the message was sent, delivery confirmation to the recipient's server, open record with date and time, attachment download confirmation, and the sending server's origin IP. These records are built to meet common standards for electronic evidence — timestamped delivery records and audit trails — recognized in many jurisdictions. Logs are retained for the contracted period (minimum 30 days, up to +5 years in enterprise plans) and exported in CSV and signed PDF.
Technical guides, delivery benchmarks and best practices for critical notification systems.
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