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Improve your sender reputation with Warmbots
Improve your sender reputation with Warmbots
Chris Traczyk avatar
Written by Chris Traczyk
Updated over a week ago

Warmbots is our very own tool, which you can use to automatically warm up your inbox, improve your sender reputation, and, effectively, improve your deliverability. Please note that from 1 June 2023, the warm-up functions are disabled for emails connected via Google API - you can read all about it here: click!

It doesn’t matter if you’re new to outbound sales, or you’re an outbound veteran - this is a tool that can be incredibly useful and take some weight off your chest. In this article you can read up on Warmbots and how they can help you improve your sender reputation:

Why do you need Warmbots?

At this point, I’m sure you’re aware that deliverability is an incredibly important and complex topic - especially when it comes to email campaigns. There are many factors that can influence the chances of your emails landing in SPAM, and it’s ever so disappointing to see your carefully crafted messages not reaching your prospects’ inboxes.

The first thing you need to ensure, especially if you’re only just starting outbound, is the technical setup of your domain - you can read more about it in these articles.

However, the technical setup is not enough. The other factor, which we’re focusing on here, is called sender reputation.

Sender reputation

Sender reputation is a loose concept describing a variety of aspects related to your sending patterns (e.g. how many messages you send a day and how consistent you are). It is also based on how your recipients interact with your emails (e.g. do they open them, do they mark them as SPAM, etc.). The bottom line is this - the more natural-looking traffic happens on your email account, the smaller the chances are that your account will be blocked by SPAM filters.

Of course, you have a big impact on your domain’s reputation yourself - targeting the right audience and sending out quality campaigns makes your prospects responsive, and thus - they provide the aforementioned natural-looking traffic.

In many situations, however, you don’t have control over the factors influencing your reputation. Sometimes you’re using a brand new email account with no reputation, or the reputation can be damaged by a couple of people marking your messages as SPAM.

That’s where Warmbots comes in.

How does Warmbots work?

Warmbots is our brand new tool, which you can use to warm up your email account and, effectively, improve or rebuild your email account’s reputation.

The mechanism behind it is simple - once you subscribe to Warmbots, your email account will automatically exchange messages with other Warmbots subscribers, mark your emails as read or retrieve them from the SPAM folder.


How do I subscribe to Warmbots?

Important note:

Please note that from 1 June 2023, Warmbots will stop warming up Gmail email accounts connected via our native Google integration. You can still enable Warmbots, but it will only provide you with the ability to monitor your deliverability, without the warm-up capabilities.

You can read more about the decision and how to maintain good deliverability in Gmail here: click!

NOTE: Warmbots for SMTP/IMAP email accounts is now working in the same way as for other integrations, so the tool is available to a broader spectrum of email accounts! Read how to connect Gmail account via IMAP/SMTP here.

To turn on Warmbots for your email account, you just need to go to the main Growbots dashboard, switch the view to Deliverability, go to Actions and click Connect to Warmbots and set up the number of messages sent from Warmbots:

We recommend to set up the maximum number (40) to warm up more effectively and maintain the best domain reputation.

It's also super important to set up filters in your Gmail inbox or your Outlook inbox to prevent it from getting cluttered with automatic Warmbots messages. In this article you'll find instructions on how to set up the filters for IMAP/SMTP inboxes.

Here's a video showing the whole process:

You can warm up all your Outlook and IMAP/SMTP connected to Growbots, and the good news is that there is no additional charge - Warmbots is free!


  • How many messages am I going to send? Who am I sending to?

The maximum number of messages sent by Warmbots is 40 per day, and they will gradually ramp-up to the defined number, emulating real user behaviour. These emails will be sent to inboxes of other Warmbots users and some of them will be in reply to other people’s email, again with the aim of emulating real human conversations.

NOTE: We're reducing the maximum Warmbots limit for Gmail accounts to 20, due to Google's recent policy changes.

  • What’s the content of these automatic messages?

The subject line and body content of these messages will be automatically generated. Do not expect anything wise - the content will look normal on the surface but the sentences may not make much sense.

  • What if I’m already sending many emails every day, should I still subscribe to Warmbots?

As long as you’re not sending more than 100 emails for one email account on a particular day, you can still subscribe to Warmbots. We will ensure that there is a smooth ramp-up of daily emails sent, safely raising the total daily number of messages with time.

  • How can I see the results of Warmbots?

In order to see the results of the warm-up process, you just need to access your Warmbots Dashboard. In order to find it, just go to your main Growbots dashboard and switch the tab to Warmbots:

  • I would like to unsubscribe from Warmbots - what do I do?

You can easily turn Warmbots off by going to the Warmbots dashboard and clicking "Disconnect from Warmbots":

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