Connect your stack
27 native integrations. 3,200+ tools via managed connectors. Most are one-click OAuth, some use API keys - Viktor handles auth and starts working. No webhooks, no Zapier zaps.
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Viktor is an AI employee that connects to Mailcheck with a scoped API key and helps you send transactional email and verify address deliverability, running 4 Mailcheck actions for you like Process Single Email, Create Batch Operation, and Get Batch Operation Status. Ask in plain English in Slack or Microsoft Teams; Viktor does the work in Mailcheck and reports back. Setup takes about two minutes.
Free to start · No credit card · SOC 2 Type 1 · Works in Slack & Microsoft Teams
Messages you'd actually send. Paste one into Slack or Microsoft Teams, swap in your specifics, and Viktor takes it from there.
“Clean this list of email addresses with Mailcheck and flag the invalid ones.”
— you, in Slack or Teams
“Check Mailcheck for our sender reputation and flag anything that could hurt deliverability.”
— you, in Slack or Teams
“Watch Mailcheck for a spike in bounces and alert me with the likely cause.”
— you, in Slack or Teams
“Pull this week's delivery and open rate for transactional email from Mailcheck.”
— you, in Slack or Teams
Ask in plain English in Slack or Microsoft Teams. Viktor picks the right Mailcheck actions, runs the work, and reports back. No workflows to build.
Retrieves available options for the Operation Name field.
Process a single email synchronously.
Get batch check operation status.
Create a batch check operation.
27 native integrations. 3,200+ tools via managed connectors. Most are one-click OAuth, some use API keys - Viktor handles auth and starts working. No webhooks, no Zapier zaps.
Message Viktor in Slack like you'd message a teammate. "Clean this list of email addresses with Mailcheck and flag the invalid ones." "Check Mailcheck for our sender reputation and flag anything that could hurt deliverability." Plain English, any tool.
Viktor opens Mailcheck, runs the work, and posts back what changed. Sensitive actions wait for your approval. Everything is logged. You stop doing the work and start reviewing it.
A Mailcheck AI agent is an AI that connects to your Mailcheck account and completes work in it - it doesn't just answer questions about Mailcheck, it takes the actions. Viktor is that agent: an AI employee that works in Mailcheck on your behalf and delivers the finished result in Slack or Microsoft Teams.
Unlike workflow builders such as Zapier or Make, there is nothing to configure - no triggers to map, no workflows to maintain. You describe the outcome in plain English, and Viktor picks the right Mailcheck actions, chains them with the other 3,200+ tools it connects to, and asks for approval before anything sensitive runs.
Validate your mailing lists in one click.
Scoped API keys - Viktor stores your key securely, uses only the scopes you grant, and you can revoke it at any time.
Review-first approvals: sensitive Mailcheck actions wait for your sign-off before they run.
Isolated compute per team, encrypted in transit and at rest - and your data is never used to train models.
SOC 2 Type 1 compliant, with Type 2 and ISO 27001 in progress.
Yes. Mailcheck is one of the 3,200+ tools Viktor connects to, via a managed connector. Once connected, anyone on your team can put Viktor to work in Mailcheck from Slack or Microsoft Teams - no workflow builder, no code.
Ask for outcomes that span tools — Viktor pulls from Mailcheck, cross-references the rest of your stack, and delivers one finished result.
Viktor connects to 3,200+ tools and works across them in a single run.
