mails.so + Apollo Integrations, Built by an AI Agent
Put mails.so + Apollo to work with AI and enterprise-grade automation
4.9/5 on G2·
Google for Startups Accelerator
Workflows you can build between mails.so and Apollo
See the kind of workflows teams build with mails.so and Apollo below — describe the exact one you want above and the Agent builds it on demand.
mails.so + Apollo
When new lead records are found in Apollo, validate their email addresses via mails.so.
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Enroll new CRM leads in marketing campaigns
When a new lead is created in Apollo, automatically add them to an onboarding campaign in mails.so so they receive relevant marketing materials instantly.
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Create sales contacts from marketing leads
When a new lead is captured in mails.so, automatically create a matching contact record in Apollo so your sales team can begin outreach.
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Tag active deals for targeted messaging
When a deal stage changes in Apollo, automatically apply a strategic tag to the contact in mails.so to trigger tailored follow-up messages.
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Browse the full workflow library →
Looking to achieve something else with mails.so and Apollo?
Just describe what you need — the Agent researches both APIs and builds the real automation on demand.
Try Knit FreeTriggers & actions for mails.so and Apollo
Everything mails.so and Apollo can do inside a workflow — the triggers that start one and the actions that run when it fires.
mails.so Explore mails.so →
mails.so is an email verification and outreach automation tool designed to help businesses send targeted email communications safely.
ActionsChecks if a given email address is valid and if it can receive email.
Apollo Explore Apollo →
A B2B sales intelligence and engagement platform that provides contact database search, email outreach, and lead management.
TriggersTriggers when an existing Account is updated.
Triggers when an existing Contact is updated.
Triggers when a new Account is created.
Triggers when a new Contact is created. Note: This trigger may not always fire instantly after Contacts are created in Apollo. Contact information must be verified as up-to-date first, so there may be a delay of up to 30 minutes.
An Account is a company that your team has added to Apollo.
A Contact is a person your team has added to Apollo.
Deals are records that you can use to track possible opportunities with your prospective customers.
Creates a Task.
Update an existing Account.
Update an already existing Contact.
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Customer Stories
See how leading technology firms are scaling their operations
Amazing Product With Exceptional Support from the team. By using Knit we managed to speed up our development by orders of magnitude.
A brilliant tool to let you seamlessly integrate with many different systems. It is very easy to integrate with and customer support is next level.
Seamless integration experience. Well-documented, self-explanatory APIs, and excellent service and support.
Easy to integrate. Knit's dashboard is intuitive for setting up and testing integrations, and the sandbox is extremely useful during development.
Knit shipped a brand-new Timesheet API in a week and handed us a ready-to-use NetSuite sandbox. That velocity is priceless when you're running payroll in 40+ countries.
#1 in Ease of Integrations
4.9 out of 5 stars on G2
Common questions about mails.so + Apollo
Is there a pre-built mails.so + Apollo automation?
Not yet, but Knit's Integrations Agent can build one — describe what you want and it researches mails.so and Apollo's public API docs (or your own uploaded docs) and builds a working automation.
Does this require a pre-built mails.so or Apollo connector?
No. The Agent works whether or not mails.so or Apollo already has a pre-built connector in Knit's catalog — it researches the real API surface either way.
How long does it take to build?
Minutes to build a first working version, not weeks — you test it against real data before it goes anywhere near production.
How do Apollo and mails.so work together to nurture leads?
When a new lead is added in sales or marketing, prospect information is automatically synced between both platforms so your marketing team can launch targeted email sequences immediately.
Will customer unsubscribe status sync across both tools?
Yes, if a contact opts out or updates their preferences, their profile can be automatically updated across both Apollo and mails.so to maintain compliance.