General
What is Supromail?
Supromail is a hosted communications platform for Email, SMS, WhatsApp, Telegram, and Business Email. You connect verified domains, phones and SIMs, linked WhatsApp numbers, and Telegram bots while Supromail provides hosted delivery, routing, tracking, webhooks, and team access.
Can I use more than one channel?
Yes. Each channel is configured independently within a workspace. See Pricing for the connected-resource limits on each plan.
Is there a free tier?
Yes. Messaging Free includes 300 email sends a month and one SMS device; Business Email Free includes one hosted mailbox. See the current limits on Pricing.
Can I self-host Supromail?
No. Supromail is currently a hosted service. Its source code is not licensed or made available for customer deployment, modification, redistribution, or operation as a competing service.
Channels & features
What do I need to send email?
You need a domain you control and can configure in DNS. After you verify it, Supromail sends mail through its hosted email delivery service. Read the email guide.
How does SMS work?
Install the companion Android app on phones you control, each with a SIM. Supromail routes messages to a connected phone, which sends using its normal carrier connection. You remain responsible for carrier charges and compliance.
Is WhatsApp officially supported by Meta?
No. Supromail's early-access WhatsApp channel uses the companion-device protocol. WhatsApp may restrict or ban a linked number at its discretion. Use genuine opt-in, ramp volume carefully, and do not rely on it for traffic that cannot tolerate that risk.
Why does Telegram not show delivered or read?
Telegram's Bot API confirms acceptance only. It does not provide bots with delivery or
read receipts, so sent is the final successful state.
What is Business Email?
Business Email provides hosted mailboxes on verified domains, accessible through Supromail webmail or IMAP and SMTP. It stores full messages, unlike inbound forwarding or webhooks. Paid Messaging plans include five mailboxes; the separate Business Email product adds more.
Can Supromail receive messages?
Email inbound routing and Business Email mailbox delivery are supported. SMS, WhatsApp, and Telegram are currently send-only; they do not store or expose inbound content as a product feature.
Data & privacy
Do you read or sell message content?
We process Customer Data to provide, secure, and support the Service. We do not sell personal data or use message content for advertising. The Privacy Policy explains the controller and processor roles.
What happens when I delete my account?
Deletion is immediate and irreversible in the dashboard. It removes the associated workspace and active data under the deletion process, subject to the retention periods and recovery-system tail described in the Privacy Policy. Support contacts are removed and conversations resolved for removal after 90 days.
Where is data hosted?
Hosted production infrastructure is in Germany. Temporary hosted-mailbox export archives are stored in Cloudflare R2. See international transfers.
Who else receives my data?
The Privacy Policy lists hosting, object storage, checkout, and customer-selected channel providers. Those providers process data only as needed for their role.
Security & compliance
Can I send health or payment data through Supromail?
Not unless we have agreed in writing that the intended use is supported. Read the sensitive-data notice.
Do you have a SOC 2 or ISO 27001 certification?
Contact security@supromail.com if your organization has a specific security-review requirement.
How do I report a vulnerability?
Email security@supromail.com with enough detail to investigate. Do not access, modify, or disclose data that does not belong to you.
How do I report spam or abuse?
Email abuse@supromail.com. Do not include unnecessary personal data in the report.
Billing & plans
How does billing work?
Paid plans are billed monthly in advance and renew automatically through the payment provider until cancelled. Messaging and Business Email are independently billed products.
Can I change plans or cancel?
Yes. The workspace owner can manage either product in Plan & billing. Cancellation takes effect at the end of the current paid month. If Resume subscription is shown before then, the owner can undo the scheduled cancellation without a new checkout.
Do you charge overages?
No. Supromail does not charge usage overages. Sends beyond the included monthly email
allowance are rejected with 429 quota_exceeded until the next calendar
month or a plan change.
What happens when I exceed a resource cap?
Existing resources are not silently deleted. You cannot create more until you remove enough existing resources or change plans.
Support
How do I get help?
Start a conversation through the chat widget in the Supromail app or email support@supromail.com. Response targets vary by plan and are not service-level commitments.
Do you offer an SLA?
Not on the hosted offering today. Enterprise support, including a dedicated chat, phone, or SLA, requires a separate written agreement.
Who should I contact for billing, sales, abuse, or security?
Use billing@supromail.com, sales@supromail.com, abuse@supromail.com, or security@supromail.com.