My mailbox warmup disabled due to a warmup bounce

Mailbox warmup disabled due to bounce. Discover reasons & resume safely. Ensure successful warmup process with Smartlead. Check now!

We've elevated the warmup process in the past 2 weeks to maintain very strong standards of the pool as its growing fast to ensure deliverability.

Every 6 hours we run an email validation check across the entire pool.

Those that don't make it then go through a try catch check (which is a little slower) to ensure they are valid.

Then those that don't make that go through a 6 step SMTP check.

This keeps high rep domains only on the warmup pool.

If there's bounces happening, it would be a good flag for you to review, it means there's changes even replies from your customers would be bouncing

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