Mailwarm 2.0 - The email warmup tool, upgraded for deliverability.

@dmitry_zakharov_ai Thank you, same to to you

@dmitry_zakharov_ai Just reviewed your infrastructure. Few things worth tweaking that could move the needle on placement.

@saad_el_gueddari Wow, thanks so much! Longevity in this space is hard, but it’s operators like you who keep us pushing to build better tools.

It’s incredibly validating to hear you call out the non-linear curves and per-ESP monitoring. The team spent so much time refining the engine to dodge those mechanical warmup signatures you mentioned, because Google and Microsoft have gotten terrifyingly smart at catching basic automation.

Thanks for the launch day support :))

@neelptl2602 Thanks a lot Neel. Starting cold email is exactly the right moment to think about deliverability, before volume increases and reputation problems become harder to fix.

Happy to have @othman_katim or @manal_essalek1 jump on a quick free call with you to review your setup and help you start clean.

Are you starting with a fresh domain or an existing domain with some sending history?

@arjayyy Usually 3-4 weeks for noticeable improvement, depending on your starting reputation. You're right that the warmup window is where campaigns stall, most tools rush it. Gradual ramp clears placement faster than aggressive volume.

@arjayyy We get this kind of question every day, and honestly, it’s smart to ask before starting.

It depends a lot on the domain: fresh or aged, past sending history, current reputation, provider, list quality, and how aggressively you start sending while warmup is running.

Some users see strong movement quickly (check this comment with a screenshot : https://www.producthunt.com/products/mailwarm?comment=5426071).

For example, this account went from:

• First test: 75.64% spam

• Previous week: 19.72%

• Current week: 13.61%

Another went from 54.55% spam to 7.29%, then slightly up to 12.14% once campaigns started, which is normal because real sending behavior also affects reputation.

So warmup is not magic. It improves the reputation layer, but your actual sending setup and behavior still matter.

What’s your situation: fresh domain, aged domain, or already sending cold outreach today?

@ronakagarwal3434 Appreciate the support :))

@ronakagarwal3434 Thanks, I made a quick check for your domain, happy to share with you some quick wins.

@alina_tyslenok_ 100% and of course beautiful emails are part from the equation.
The biggest hack we have is to get people answer by asking questions.
Any design hacks you have that make people answer from your experience with stripe.email?

@istiakahmad Thank you so much for the support. Do forward us your feedback once you use it :)

@aadilghani Thank you! We will for sure check if we can include this in the roadmap

@leventbuilds Great technical question, the transition phase is where a lot of teams accidentally tank their reputation.

In our experience, you shouldn't completely taper off if you are running active campaigns. Instead, you switch from ramp up mode to maintenance.

A good rule of thumb is keeping a steady background signal running, because when your real sending spikes, your domain needs an algorithmic safety net. Those background signals ensure that if a couple of grumpy recipients mark your real email as spam, a steady stream of positive thread interactions is happening simultaneously to balance the scales.

To keep it looking natural to ESPs the key is variance, so staggering the times, randomizing the thread replies, and making sure the engagement mimics actual human workflows rather than a mechanical pattern :)