Integrations
Plays well with every email account you own.
All providers connect through standard SMTP + IMAP using App Passwords. Zero OAuth restricted-scope drama.
Email providers
Gmail
App Passwordsmtp.gmail.com:465 SSL · imap.gmail.com:993 SSL
Google Workspace
App PasswordSame as Gmail with 2FA + admin app password policy
Outlook
App Passwordsmtp.office365.com:587 STARTTLS · outlook.office365.com:993 SSL
Microsoft 365
App PasswordSame as Outlook with admin-managed app passwords
Zoho Mail
App Passwordsmtp.zoho.com:465 SSL · imap.zoho.com:993 SSL
Yahoo Mail
App Passwordsmtp.mail.yahoo.com:465 · imap.mail.yahoo.com:993
iCloud Mail
App-specific passwordsmtp.mail.me.com:587 STARTTLS · imap.mail.me.com:993
FastMail
App passwordsmtp.fastmail.com:465 · imap.fastmail.com:993
ProtonMail Bridge
Bridge127.0.0.1:1025/1143 via Bridge — full SMTP+IMAP locally
Hetzner / Mailbox.org / Migadu / Tutanota
Custom SMTPStandard SMTP+IMAP credentials
AWS SES
Custom SMTPVerified domain + SMTP credentials. IMAP via Workmail or your own.
Postmark / Resend / SendGrid
Custom SMTPTransactional ESPs as your SMTP. Inbound via dedicated IMAP.
Platform integrations
REST API
Fully featured workspace-scoped API. CRUD on accounts, leads, campaigns, inbox, webhooks.
Webhooks
12+ events. HMAC-SHA256 signed. Retries with exponential backoff up to 6 attempts.
Zapier
Trigger zaps on any MailFlow event; create leads and campaigns from any zap source. (Beta)
Make.com
Same coverage as Zapier through a custom HTTP module. (Beta)
n8n
Self-hosted n8n connector — drop in our REST API + webhook nodes. (Community-maintained)
CSV import / export
Streaming CSV ingestion with auto-mapping; full export of all workspace data.
Need a custom integration?
Our REST API is open. Build whatever you need — and let us know what's missing.