Business mailings to your customers in WhatsApp

In two clicks, send your offers, promotions, service and informational messages in WhatsApp without adding phone numbers to your smartphone contacts

Free testing and getting started with the service

WhatsApp mailing service
  • Sent 900 million messages
  • Done 2 million mailings
  • Used by 200 thousand users
  • Working 6 years effectively

Our mission is to make your mailings simple and effective

  1. Simple and convenient

    No complex settings or software to install

  2. AI marketer

    Writes and optimizes the message text

  3. Response analytics

    Reports on deliveries, reads, and responses

  4. Auto-strategy

    Lowers the blocking risk

  5. Multi-mailings

    Several mailings from different accounts

  6. Account checker

    Checks registration in WhatsApp

  7. Scheduler

    Setting up a schedule for sending messages

  8. Personalization

    Text personalization and randomization

  9. Text randomization

    Every message is unique

How to make a mailing in WhatsApp

  1. Step 1

    Log in to WSENDER

    The service has no password: sign in with Yandex, Google or by email.

  2. Step 2

    Create a mailing

    The number of mailings is unlimited. You can connect any of your messenger accounts.

  3. Step 3

    Add messages

    You can add text, images, videos, audio, documents, or a contact card.

  4. Step 4

    Upload the database

    From CRM, an Excel file, a contact segment, or messenger chats. Numbers can be in any format.

  5. Step 5

    Launch the mailing

    You can start sending from any WhatsApp or WhatsApp Business account.

  6. Step 6

    The mailing is ready

    View your message sending statistics and receive responses from customers.

How to use mailings

Why WhatsApp mailings work

WhatsApp is the most popular messenger in the world: it is installed on almost every smartphone, and its messages are opened far more often than e-mail. A personal message from a real account does not look like an ad and lands directly in a chat the customer checks every day.

A WhatsApp mailing is sent from your regular accounts to the phone numbers in your base — recipients do not need to install or confirm anything. Send text, pictures, videos, files and contact cards, receive replies from customers and analyze the reaction to every mailing.

Our clients

Our service is useful for any business, whether it's a small flower shop or a large medical center with branches across the country. If you want to find new customers or improve your interactions with existing ones, mailings in WhatsApp can become an effective marketing tool for you.

  • Retail and online stores
  • Service industry
  • Marketing and advertising
  • Tourism and travel
  • Food service
  • Education and training
  • Medicine and health
  • Beauty industry
  • Construction and real estate
  • Event management
  • HR and recruitment
  • And many others

Frequently asked questions about mailings

  • How do I start a mailing in WhatsApp?

    When starting your first mailing, choose Connect a new WhatsApp account. A QR code will appear — scan it in the linked devices section of the WhatsApp or WhatsApp Business app.

    After the first mailing from the new account, it stays connected to the service, and you will not need to scan the QR code again to start the next mailings.

    More details in the article about starting a mailing.

  • From which accounts are mailings sent in WhatsApp?

    Mailings are started from any of your own accounts registered in the WhatsApp or WhatsApp Business app. Replies from recipients arrive to the same accounts.

  • How many WhatsApp accounts can be connected?

    The number of connected accounts depends on your plan.

    • Free Basic plan — 1 account.
    • Light plan — 1 account.
    • Professional plan — up to 50 accounts.
  • Can WhatsApp block an account for mailings?

    It can: WhatsApp restricts sending when a number pushes out a stream of identical messages to people who do not have it saved in their contacts. Moreover, a WhatsApp block is not always visible right away: messages may simply stop being delivered. The risk grows with:

    • Auto-strategy disabled and the speed pushed up manually;
    • A link in the first message to someone outside the contacts;
    • A promo banner in the very first message;
    • Complaints and blocks from recipients;
    • Repetitive text without the recipient's name;
    • A purchased list not built from your own clients.

    WSENDER looks after the number: the auto-strategy warms up the account gradually and slows down on its own if WhatsApp starts restricting delivery. AI moderation checks the message text before launch.

Feedback from our users

  • Anna

    Online store

    I spent a long time looking for a reliable WhatsApp mailing service — I tried several and settled on this one. I really liked that there are ready-made message templates: it saved me a lot of time on creating them. Sending works stably, messages reach customers without delays. I track the statistics — I can see how many people opened the message and followed the link. Thanks to the mailings, we increased repeat sales by 15 %. Very happy!

  • Dmitry

    Fitness trainer

    I use the service for training reminders and mailings announcing new programs. The message scheduling feature is a real find: I set everything up a month ahead and forgot about it. Clients say they get reminders on time — fewer missed sessions. It is also handy that you can segment the audience: I write separately to those who do yoga and to those who do strength training. The interface is simple, I figured it out in a couple of hours. Definitely recommend!

  • Elena

    Make-up artist

    As a self-employed artist, it is important for me to keep in touch with clients and remind them about myself. The WhatsApp mailing service has been a real lifesaver! I set up automatic messages after a booking: confirmation, a reminder the day before, and a thank-you after the visit. Clients say it is very convenient. In 2 months of use I noticed more repeat visits — people do not forget about me. So glad I found this tool!

  • Alexey

    IT specialist

    I was choosing a mailing service with an API to integrate with my own CRM. This one fit perfectly — the documentation is clear, and tech support helped with the setup. Now I automatically send clients project statuses and deadline notifications. Everything works stably, delays are minimal. The reporting was a particularly nice surprise: I can see who read the message and who opened the link. A very well-designed tool for automating communications!

  • Maria

    Tutor

    I use the service for mailings to my students' parents. I send class schedules, homework, useful materials and payment reminders. It is convenient that you can send messages to a whole group and still personalize them — I add each parent's name. Support responds quickly: when I could not attach a file, they helped within 10 minutes. In 3 months with the service, not a single delivery delay — everything is spot on!

  • Natalia

    Travel agent

    In tourism it is very important to promptly inform clients about the status of their requests and changes to the tour. The mailing service has made this task much easier. I set up automatic messages at different stages: booking confirmation, a reminder about documents, departure information. Clients are happy — fewer questions and worries. It is also convenient to send tour selections to the target audience by interest. In six months of work, not a single failure — everything is stable and reliable!