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Contact Migration Guide

Migrating contacts and suppression lists into Mailofly is straightforward using CSV imports or bulk API synchronization.

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1. Export from Existing Provider

Export your active subscriber lists and suppression lists (bounces, unsubscribes, spam complaints) from your previous provider (e.g. Mailchimp, SendGrid, AWS SES).

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2. Bulk Import via Dashboard

  1. Navigate to Contacts in your dashboard.
  2. Click Import Contacts and upload your CSV.
  3. Map columns to standard fields (email, first_name, last_name, unsubscribed) and custom properties.

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3. Preserving Suppressions

Always ensure previously unsubscribed users or hard bounces are imported with unsubscribed: true to prevent unsolicited email delivery.

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Provider-Specific Migration Guides

For full codebase, template, webhook, and DNS migration guides from your current platform, check out:

Migrate from Resend

SDK replacement, React Email, and Svix webhooks.

Migrate from SendGrid

Replace v3 personalizations and import suppression lists.

Migrate from Mailchimp

Convert merge tags and unify marketing & transactional sends.

Migrate from AWS SES

Replace SNS/SQS/Lambda bounce pipelines with managed webhooks.

Migrate from Postmark

Convert message streams and server tokens to identities and API keys.

Migrate from Mailgun

Switch from multipart form-data to clean REST JSON APIs.