Sim
  • Docs
  • Blog
  • Integrations
  • Models
  • Pricing
  • 27.8k
  • Docs
  • Blog
  • Integrations
  • Models
  • Pricing
  • GitHub

What should we get done?

Docs

Product

MothershipWorkflowsKnowledge BaseTablesMCPAPISelf HostingStatus

Resources

BlogDocsModelsPartnersCareersChangelogContact

Blocks

AgentRouterFunctionConditionAPI BlockWorkflowParallelGuardrailsEvaluatorLoop

Integrations

All IntegrationsConfluenceSlackGitHubGmailHubSpotSalesforceNotionGoogle DriveGoogle SheetsSupabaseStripeJiraLinearAirtableFirecrawlDiscordMicrosoft TeamsTelegram

Socials

X (Twitter)LinkedInDiscordGitHub

Legal

Terms of ServicePrivacy Policy
Back to Integrations

SMTP

Send emails via any SMTP mail server

SMTP is a Emailintegration for Sim, the AI workspace where teams build and deploy AI agents. Sim's SMTP integration provides a SMTP connection that AI agents can use inside Sim's visual workflow builder. SMTP connects with an API key. Free to start at sim.ai.

View docs

Last updated June 12, 2026

Overview

Send emails using any SMTP server (Gmail, Outlook, custom servers, etc.). Configure SMTP connection settings and send emails with full control over content, recipients, and attachments.

How to automate SMTP with Sim

  1. 01

    Create a free account

    Sign up at sim.ai in seconds. No credit card required. Your workspace is ready immediately.

  2. 02

    Add a SMTP block

    Open your workspace, drag a SMTP block onto the workflow builder, and paste in your SMTP API key.

  3. 03

    Configure, connect, and run

    Pick the tool you need, wire in an AI agent for reasoning or data transformation, and run. Your SMTP automation is live.

Frequently asked questions

Sim's SMTP integration connects SMTP to the AI agents you build in Sim's visual workflow builder — no code required. Send emails via any SMTP mail server. Teams often pair SMTP with AgentMail and AWS SES in the same agent.

Connecting SMTP takes about five minutes: (1) Create a free account at sim.ai. (2) Create an agent in your workspace. (3) Drag a SMTP block onto the workflow builder. (4) Paste your SMTP API key to authenticate — you can find it in your SMTP account settings. (5) Configure the block's inputs and click Run — your agent is live.

AgentMail

Manage email inboxes, threads, and messages with AgentMail

AWS SES

Send emails and manage templates with AWS Simple Email Service

Email Bison

Manage Email Bison leads, campaigns, replies, and tags

Instantly

Manage Instantly leads, campaigns, emails, and lead lists

Sim

Start automating SMTP today

Build your first AI agent with SMTP in minutes. Connect to every tool your team uses. Free to start, no credit card required.