Cold email in 2026: does it still work for B2B?

I keep seeing more B2B founders give up on cold email entirely, or outsource it completely, between the anti-spam pressure on inboxes these days, the SPF/DKIM/DMARC setup you need to keep maintained over time, and how much time it takes just to keep deliverability decent.

How are you handling outbound today? Still running it in-house, using a tool, or did you just stop doing cold email altogether?

(Small context: we're launching VibeSell tomorrow on Product Hunt, it handles domain provisioning, inbox warmup, and sending for B2B founders, the idea being the only thing you manage is replying to interested prospects. But I'm mostly curious how everyone else is set up.)