Not Able to Use Yet
Right after purchasing, I went ahead and tried to setup the tool. The UI is pretty decent, and the UX isn't bad. I just hit an immediate road block and haven't been able to move forward yet. I have to buy a new email address for a subdomain, which I wasn't expecting to need.
Also, personal email accounts aren't supported. I tried to create a free Gmail for the expected spam blasts, but that wasn't accepted. It's only business accounts with custom domains that are accepted.
That isn't identified anywhere in the UI. You have to find out that hard way.
Edit 20251029:
I need to add more detail for clarity. I have upgraded my review from 1 taco to 3 tacos.
There is alot here, so let's just dive in. Since this tool is supposed to send out cold emails, I absolutely don't want to use my existing domain to send those. Why? It would be a bad day if my normal business operations email got blacklisted. Especially if it happened because of a tool like this.
I created a free personal Gmail account and attempted to connect it. That was unsuccessful, but nothing happened at the time. So, I couldn't actually tell what was happening with it. I ended up deleting that Gmail account. Later on, after getting in touch with support and Kevin, I did try to create a new personal Gmail account but was blocked because I don't have another phone number. I also created a personal Outlook email and attempted to connect it. That resulted directly in an error that stated personal accounts weren't allowed. I have since deleted that account as well.
Since my experience resulted in both a personal Gmail and Microsoft email not being connected, and with the explicit error that states personal accounts weren't allowed, I did make the claim that it was both of them. I have been informed by Kevin (CEO) that this is not actually the case, as personal Gmail accounts are allowed. I'm not able to confirm, but I would assume that this is accurate.
Since I can't create a new personal Gmail, and personal Microsoft isn't connected, then I'll absolutely have to buy a new email address from Microsoft ($60/year) just to connect to this tool. It's not that expensive. I just wasn't prepared to deal with all of this stuff as I expected email to be included. Also, NONE of this difference is detailed in the app. Which is where most of my frustrations lie on the topic.
Support on the weekends appears to be nonexistent, as I never got an email response over the weekend. But since Monday (it's now Wednesday), I've received multiple emails from them. In fact, Kevin himself even handled my case just like he did here. That is something that I truly appreciate and applaud them for. I'm still not able to use the product until I get a new email address, but it was nice to see them take my problem so seriously.
Here is where things turn sideways. Aside from the emails, I also got a message on LinkedIn from Kevin. Initially it started out as added support, but quickly turned into an effort to manipulate reviews. He specifically asked me to "remove your review" escapade.
Yeah, no. I don't play that game.
Video Evidence:
https://www.loom.com/share/0d801d36d4784900b141710d97dc6b42
Kevin_Nexuscale
Edited Oct 31, 2025Edit: I’ve personally made multiple attempts to assist Jared in what is a rather simple feature that is used by thousands of users in Nexsucale including several email replies, detailed setup instructions, and even outreach on LinkedIn, but unfortunately have not received any response.
Hi Jared,
Appreciate you taking the time to share your feedback.
Just to clarify, personal Gmail accounts DO WORK with Nexuscale.
Its super easy, just go here: https://app.nexuscale.ai/mailbox
Click Add Mailboxes — Google — Continue with Google and go through the auth flow.
Hundreds of users connect personal emails without issue, and there’s no verification block or technical restriction. It’s possible there was some confusion during setup, and we’re always happy to help walk through that process. support@nexuscale.ai
That said we don’t recommend using personal Gmail accounts for cold outreach. Personal inboxes have daily sending limits and lower deliverability for outbound campaigns. That’s why we encourage using a business domain or subdomain, not because it’s required, but because it’s best practice for keeping your sender reputation healthy and results consistent.
If you’d like, our team can help you set up the best configuration for your workflow in just a few minutes.