We try not to limit our users, but unfortunately, we need to disable warmup in cases where it's causing a negative impact on other users in the pool. Warmup will be disabled most likely in the following scenarios:
Bouncing emails from other users in the warmup pool
Warmup can be disabled when your accounts are bouncing too many warmup emails sent by other Instantly users in the warmup pool. This is necessary to ensure that the quality of our warmup pool remains high for all users.
We added a pre-check layer so that any new account that's getting connected to the pool will have its deliverability checked by at least 2 third-party providers (Zerobounce and Emailable) - that way, even if our primary system is having issues, we'll know for sure that an account is 'safe' to join the pool.
How to enable warmup?
To enable the warmup for your accounts, you need to ensure your accounts are deliverable and can receive emails. Please follow the steps below:
Use any email verification tools to verify the accounts in question. (Emailable/Zerobounce/Millionverifier, etc)
Ensure your accounts can receive emails from other accounts.
You can now contact our chat support to enable the warmup for your accounts.
Unable to access your Spam folder
The way our warmup works, includes taking out warmup emails that land in a user's spam folder and putting it in their main inbox. So the warmup won't work as expected if we can't access the spam folder of your accounts at all.
This is why you're seeing this error in your dashboard - unable to determine the spam folder.
How to enable warmup?
To enable the warmup for your accounts, you need to have a dedicated spam folder in your account. Please follow the steps below:
Going into the webmail for the account that has the issue - mark an email as spam, and ensure you can see it in the spam folder.
Remove the account from Instantly, and add it back from scratch.
You can now enable the warmup for your accounts.