Email accounts keep getting flagged while doing affiliate

Been trying to warm up some Gmail accounts to seed affiliate links. No mass sending, just low volume outreach and soft redirects. Still, a bunch of accounts keep getting limited or flagged after a few sends. I’ve tried to figure out what’s triggering it, but no luck so far. Posting here in case anyone’s run into the same issue or has tips.

Use an email sequence. Don't send links in first few emails. Filter out contacts that don't open the email. Optionally give an option to optin. The send clocked affiliate links.

You need to rotate IP. Its important that you do that so that the platform doesn't detect similar activity from the same IP. You can use your device hotspot and then toggle air plane mode to rotate IP to send the next email.

I'm also starting to warm up Gmail accounts and running into similar issues. Curious—does the age of the Gmail account or how it's been used before make a big difference in getting flagged? Appreciate any tips from those with more experience. Just trying to understand what patterns Google looks for.