Resources for Learning Email Deliverability and Self-Setup Tips

Paul B. · 2025-10-14T06:21:13.007Z

Hi all, does anyone have resources they can suggest to learn about email deliverability and setting up email accounts for outbound campaigns yourself? I tried via Instantly but I got this message after 4 weeks of warming up DFY accounts: "Thanks for the wait. Your DFY accounts were impacted by a recent automated suspension sweep from Google. These sweeps sometimes occur, even when there’s no issue or policy violation on your side." They are going to replace the emails with a new domain at no charge but I need to go back through the warm up process. I'm looking for information on how not to rely on 3rd parties for this to so I can prevent this from happening again.

Resources for Learning Email Deliverability and Self-Setup Tips | Clay

Bharat D.
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Hey Paul B. StackOptimize has a course on this. They go in depth about email setup etc. it might be worth checking out. If you are looking for free options, YouTube is the best option.
Paul B.
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Thanks, will check them out
Marina H.
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Hey Paul B. I used Zapmail to create new email accounts and warm them up. Then just connected/exported mailboxes to Instantly
Matt S.
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I also purchased lots of instantly DFY accounts, and I didn't know this could happen. Sounds scary - but I also think this could happen to your accounts you bought from Zapmail. That's why all the cold email agencies keep buying 2x amount of the required mailboxes so they can replace quickly when needed
Paul B.
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Thanks Marina, will look in to Zapmail. Matt S. yes, that's the lesson learned. I bought 5 emails for 1 domain, better practice to by 3 domains and 2 emails for each.
Marina H.
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oh yes, we bought 3 domains and had max of 3 emails per domain
Matt S.
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It's ironic - Today, we just had 7 domains disconnected (all purchased from Instantly) and we had 35 mailboxes in them - all warmed up for months Paul B.
Matt S.
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I am seriously considering to move to Smartlead + use Zapmail/ Hypertide only
Sourabh
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Hey Paul, totally get where you’re coming from — relying fully on DFY setups can backfire when Google runs those automated sweeps. We’ve helped a few teams take full control of their outbound infrastructure by setting up domain pools, DNS authentication (SPF, DKIM, DMARC), and structured warm-up automation that stays under Google’s radar. Happy to share a quick walkthrough or help you design a self-managed setup that keeps deliverability high without needing third-party warm-up services. – Sourabh linkedin.com/in/sourabh85 panopticanalytics.com
Anas A.
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Paul B. I recorded a YT video explaining the best practices.
Attached doc below.
Here's the YT video
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Anas A.
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Paul B.
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Matt S. I got excited about Hypertide and then saw it was a $1500 implementation fee. Anas A. thanks for this, very useful.
Matt S.
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Paul B. Dude we gotta connect haha - we're following a very similar path I just booked a call with them (and have another call booked with Zapmail in 13 mins) Trying justify the $1500 setup fee and if I need Hypertide if i buy Zapmail etc
Tuongvan L.
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following along - curious how your experience has been since this discussion? did you end up going with hypertide or zapmail?
Rafa J.
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I'm following exactly the same playbook that Anas A. published. After some months falling in spam folder, I started the same strategy and It worked. More suggestions:
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I send only 3 times a day: 9am 12pm and 3pm. During 60-90 min. I try to emulate human behaviour as realistically as possible.
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I normally send unique emails. Totally or partially written with ai + Spyntax
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I don't track opens or clicks on links.
Trust me, if you "only" send 20 daily emails per account, 3. times a day with unique content each one, (and you warm the accounts properly) it's almost impossible to fall in Spam folder, basically because it seems that it's a human that is sending emails. I work with Instantly and Lemlist for cross-channel outbound.

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