How to load data from MailerSend to Postgres destination
Learn how to use Airbyte to synchronize your MailerSend data into Postgres destination within minutes.


Building your pipeline or Using Airbyte
Airbyte is the only open source solution empowering data teams to meet all their growing custom business demands in the new AI era.
Building in-house pipelines
- Inconsistent and inaccurate data
- Laborious and expensive
- Brittle and inflexible
After Airbyte
- Reliable and accurate
- Extensible and scalable for all your needs
- Deployed and governed your way
Start syncing with Airbyte in 3 easy steps within 10 minutes



Take a virtual tour
Demo video of Airbyte Cloud
Demo video of AI Connector Builder
Setup Complexities simplified!
Simple & Easy to use Interface
Airbyte is built to get out of your way. Our clean, modern interface walks you through setup, so you can go from zero to sync in minutes—without deep technical expertise.
Guided Tour: Assisting you in building connections
Whether you’re setting up your first connection or managing complex syncs, Airbyte’s UI and documentation help you move with confidence. No guesswork. Just clarity.
Airbyte AI Assistant that will act as your sidekick in building your data pipelines in Minutes
Airbyte’s built-in assistant helps you choose sources, set destinations, and configure syncs quickly. It’s like having a data engineer on call—without the overhead.
What sets Airbyte Apart
Modern GenAI Workflows
Streamline AI workflows with Airbyte: load unstructured data into vector stores like Pinecone, Weaviate, and Milvus. Supports RAG transformations with LangChain chunking and embeddings from OpenAI, Cohere, etc., all in one operation.
Move Large Volumes, Fast
Quickly get up and running with a 5-minute setup that enables both incremental and full refreshes for databases of any size, seamlessly scaling to handle large data volumes. Our optimized architecture overcomes performance bottlenecks, ensuring efficient data synchronization even as your datasets grow from gigabytes to petabytes.
An Extensible Open-Source Standard
More than 1,000 developers contribute to Airbyte’s connectors, different interfaces (UI, API, Terraform Provider, Python Library), and integrations with the rest of the stack. Airbyte’s AI Connector Builder lets you edit or add new connectors in minutes.
Full Control & Security
Airbyte secures your data with cloud-hosted, self-hosted or hybrid deployment options. Single Sign-On (SSO) and Role-Based Access Control (RBAC) ensure only authorized users have access with the right permissions. Airbyte acts as a HIPAA conduit and supports compliance with CCPA, GDPR, and SOC2.
Fully Featured & Integrated
Airbyte automates schema evolution for seamless data flow, and utilizes efficient Change Data Capture (CDC) for real-time updates. Select only the columns you need, and leverage our dbt integration for powerful data transformations.
Enterprise Support with SLAs
Airbyte Self-Managed Enterprise comes with dedicated support and guaranteed service level agreements (SLAs), ensuring that your data movement infrastructure remains reliable and performant, and expert assistance is available when needed.
What our users say

Raman Singh
Predictable, straightforward pricing model that simplified budgeting and significantly reduced overall spend

Chase Zieman

“Airbyte helped us accelerate our progress by years, compared to our competitors. We don’t need to worry about connectors and focus on creating value for our users instead of building infrastructure. That’s priceless. The time and energy saved allows us to disrupt and grow faster.”

Rupak Patel
"With Airbyte, we could just push a few buttons, allow API access, and bring all the data into Google BigQuery. By blending all the different marketing data sources, we can gain valuable insights."
How to Sync to Manually
Step 1: Understand MailerSend's API Documentation
Begin by reviewing MailerSend's API documentation to understand the endpoints available for data retrieval. Familiarize yourself with the authentication process and the specific API endpoints that provide access to the data you want to transfer.
Step 2: Set Up API Authentication
Obtain the necessary API credentials from MailerSend, such as the API key. Use this key to authenticate your requests to the MailerSend API. Typically, this involves including the API key in the headers of your HTTP requests.
Step 3: Retrieve Data from MailerSend
Write a script using a programming language like Python, Node.js, or Ruby to send HTTP GET requests to the MailerSend API endpoints. Parse the JSON responses to extract the desired data. For example, use Python's `requests` library to make the API calls and `json` module to process the responses.
Step 4: Set Up PostgreSQL Database
Ensure your PostgreSQL database is running and accessible. Create a new database if necessary, using the `CREATE DATABASE` SQL command. Within this database, set up the required tables using the `CREATE TABLE` command to match the structure of the data you are importing.
Step 5: Transform Data for PostgreSQL Compatibility
Transform the data obtained from MailerSend to match the schema of your PostgreSQL tables. This may involve data type conversions, renaming fields, or structuring nested JSON data into relational formats. Write a script to automate this transformation process.
Step 6: Insert Data into PostgreSQL
Use a programming language with database connectivity capabilities, such as Python with `psycopg2` or Node.js with `pg` module, to connect to your PostgreSQL database. Construct SQL `INSERT` statements or use a bulk insert operation to transfer the transformed data into your PostgreSQL tables.
Step 7: Automate the Data Transfer Process
If you need to perform this data transfer regularly, automate the process using a cron job or a similar scheduling tool. Ensure your script handles exceptions and logs errors for monitoring. Set appropriate intervals for data transfer based on your data freshness requirements.
By following these steps, you can manually transfer data from MailerSend to a PostgreSQL database without relying on third-party connectors or integrations.