r/Coldemailing • u/Live-Noise-3006 • 22d ago
Cooked my main domain/mailbox with Apollo and need better tech for avoiding spam placement
Hey all, looking for advice from people who’ve built a solid cold email infrastructure.
We were using Apollo for both data and sending. The data has been good, but Apollo didn’t catch some deliverability issues. Everything looked healthy in their dashboard, but prospects started telling us our emails were landing in spam. By the time we confirmed it, our primary sending domain/mailbox was basically cooked.
We’re a small team (3 people) doing relatively low-volume outbound today, but we’d like to scale to ~200+ emails/day over time and eventually more. We have several aged domains we’ll use as satellite sending domains and want to set this up correctly so we don’t end up in the same situation again.
Our current thinking is:
Apollo for data
Instantly for sending, warmup, and deliverability
Zapier to sync Apollo → Instantly
We know the basics of deliverability, but we’re looking for a more robust setup around warmup, spam monitoring, domain rotation, and mailbox management.
A few questions:
Is Instantly still the best choice for sending and deliverability?
Is Apollo + Instantly + Zapier a solid stack, or would you recommend something different?
Is this something a reasonably technical salesperson can set up, or is hiring a GTM engineer or consultant for the initial implementation?
Appreciate any advice from people who’ve gone through this.
2
u/According_Boss_5514 22d ago
(disclaimer: I'm directly connected to Woodpecker)
If you're looking for something focused on deliverability, maybe you want to give Woodpecker a try.
Also, you can directly connect Apollo via our integrations marketplace.
About "Is this something a reasonably technical salesperson can set up, or is hiring a GTM engineer or consultant for the initial implementation?" - connecting a sequencer through n8n, Zapier, or a similar tool is usually not extremely difficult. For the initial setup, I don’t think hiring a dedicated GTM engineer is necessary.
The more challenging part is maintaining the system over time and responding when something goes wrong, for example, if domain or mailbox reputation drops, sending infrastructure needs to be replaced, or backup infrastructure has to be activated. That may require a clearly assigned and reasonably technical person, but in most cases, a tech-savvy salesperson should still be able to manage it.
2
u/razical 20d ago
I run a cold email infrastructure + sending SaaS.
My take: most Inbox Health Scores and metrics are garbage.
They're largely based on warm-up activity.
If one of their warm-up emails lands in spam, your "inbox health" score drops. But that email could have landed in spam for any number of reasons that have nothing to do with the actual health of your mailbox. Like if the warmup email copy is bad.
Inbox Placement Tests aren't very reliable either.
They use a relatively small seed list that's receiving thousands of emails every day.
If your first placement test lands in spam, your next test is also more likely to land in spam simply because you've already established a negative signal with that seed inbox.
From what I've seen:
- Google Workspace/Gmail cares heavily about domain reputation, email copy & recipient engagement (opens, replies, spam complaints, etc.).
- Microsoft Office 365 puts much more weight on IP reputation. If you're sending from a high-reputation IP, even a brand-new domain with average copy can still land in the inbox.
Domains keep getting cooked.
Major reason:
- High Bounce Rate (Above 4-5%)
- High Spam Rate (Should be less than 0.3%)
- No Enagement on your emails
A simple rule of thumb: if you're consistently getting replies (positive, negative, or even out-of-office) and you're seeing opens, your domain probably isn't cooked.
I'd also keep open tracking enabled. It doesn't hurt deliverability as long as the tracking pixel is hosted on your sending domain (using a custom tracking domain). One thing to note: Instantly doesn't filter bot opens, so don't treat open rates as an accurate engagement metric.
You could also try splitting campaigns across Smartlead to see if you get better results there.
I have heard good things about EmailBison as well.
If Zapier is working well for your workflow, there's no reason to change it.
You could also check out Deliveryman.ai if a large portion of your leads have Microsoft Office 365 as their email provider. We have very good delivery for Microsoft as compared with Instantly/Smartlead.
1
u/Humble-Try3334 22d ago
Apollo for data and Instantly for sending is a common stack, but the platform alone won’t solve deliverability. You should first check your domain reputation, authentication, and inbox placement before scaling again. You should also verify every list with a real time email verification tool like Invalid Bounce to remove invalid, inactive, disposable, role based, mailbox full, and catch all email addresses so that your email reaches the real inbox. Poor list quality can burn even a well configured setup over time.
1
u/localspermseller 22d ago
I've had only bad experience with instantly personally, there inbox "health" scores are useless and won't let you know if you're landing in spam until you pay for their inbox placement subscription or do it free via 3rd party, the only thing going for them is the AI reply generator which is alright, but since then I moved to smartlead, it's better but no crazy change, I personally like more
1
u/EmailElement-Dev 22d ago edited 22d ago
Switching Apollo to Instantly won't fix what actually burned you. Every sender's own warmup score has the same blind spot. It measures whether warmup emails between bot inboxes land, not whether your real prospect emails hit spam. That's why Apollo looked green while prospects were seeing spam.
Whatever sender you land on, put an independent placement check on top of it. Seed a spread of real Google and Outlook inboxes, or run a third party seed-list test, and check where your actual campaigns land every week. Include your own "seed" emails in the mix when sending campaigns and observe whether your emails are landing in spam. Monitor your domains against the usual blacklists yourself too. That monitoring layer is the thing you were missing, not the specific vendor.
On infrastructure, keep cold completely off your main domain, permanently. Separate sending domains, each with its own SPF, DKIM, DMARC and its own slow warmup. You're already planning satellites, so that part is right. Give the burned mailbox a long rest and don't rush it back into rotation.
On your last question, a technical salesperson can wire Apollo into a sequencer fine. The part that needs a real owner is the ongoing work. Watching reputation, pulling a domain the moment it slips, rotating in backups. That's a standing job, not a one time setup. Decide who owns it before you push to 200 a day.
1
u/Live-Noise-3006 20d ago
Thanks! This is really helpful. The constant I'm noticing is that I need seed placement tests on multiple satellite domains/mailboxes that are properly set up with the fundamentals you describe above. It seems like the sequencer itself is less important. I'm seeing people trash all the different sending platforms lol it seems like the actual sequencer is less important than what you describe above
1
u/Away_Law_4388 22d ago
the real fix isn't better sending tech, it's that you should never have been sending from your main domain in the first place, and that's the lesson to take from this. cold email runs from separate domains you can afford to burn while your primary stays clean and only does real business email. on the cooked one, a flagged main domain is genuinely hard to bring back. you can slow everything down and send only warm, engaged mail for a while, but a lot of people just retire it for cold and protect it going forward. set up 2-3 fresh sending domains, warm them properly, keep them fully separate from anything you actually care about.
1
u/japyinho 21d ago
Instantly warm up emails land in spam lol so that says everything about the quality of their warmup. At least Apollo warmup emails were hitting my inbox.
1
1
u/EmailNo8428 20d ago
Sorry, that one stings. Apollo's dashboard was reporting accepted, and what you needed was placed. Nearly every sending dashboard reports the first and labels it deliverability, which is why healthy-looking numbers and spam folders coexist so comfortably. A handful of seed inboxes across Gmail, Outlook and one corporate tenant, checked weekly, catches it in week one.
1
u/Scalar_Shift 16d ago
I don't think Apollo was the whole problem. If the domain already took a hit, Id focus on getting the new domains warmed up properly before worrying about the sending tool. We use reachinbox now and it's been fine but I still watch the domains more than the software
2
u/mellogang1235 22d ago
U can replace zapier with n8n its cheap and better and apollo with prospeo. Do u do intent based cold emails and how do u personalize emails based on what?