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 MailboxValidator with a scoped API key and helps you send transactional email and verify address deliverability, running 1 MailboxValidator actions for you. Ask in plain English in Slack or Microsoft Teams; Viktor does the work in MailboxValidator 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 MailboxValidator and flag the invalid ones.”
— you, in Slack or Teams
“Check MailboxValidator for our sender reputation and flag anything that could hurt deliverability.”
— you, in Slack or Teams
“Watch MailboxValidator 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 MailboxValidator.”
— you, in Slack or Teams
Ask in plain English in Slack or Microsoft Teams. Viktor picks the right MailboxValidator actions, runs the work, and reports back. No workflows to build.
Validate an email address.
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 MailboxValidator and flag the invalid ones." "Check MailboxValidator for our sender reputation and flag anything that could hurt deliverability." Plain English, any tool.
Viktor opens MailboxValidator, 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 MailboxValidator AI agent is an AI that connects to your MailboxValidator account and completes work in it - it doesn't just answer questions about MailboxValidator, it takes the actions. Viktor is that agent: an AI employee that works in MailboxValidator 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 MailboxValidator actions, chains them with the other 3,200+ tools it connects to, and asks for approval before anything sensitive runs.
Secure and reliable email validation service to check for invalid email addresses. It connects to the mail server and checks whether the mailbox exists or not. It reduces email bounce rate & costs. It increases conversion rate & sender reputation.
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 MailboxValidator 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. MailboxValidator 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 MailboxValidator from Slack or Microsoft Teams - no workflow builder, no code.
Ask for outcomes that span tools — Viktor pulls from MailboxValidator, 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.
