Cold email deliverability, SMTP setup, email validation, and outreach strategy.
SendGrid suspends cold email accounts within days — sometimes hours. Here's the exact setup process I use to send cold outreach through SendGrid without triggering their abuse filters.
AWS SES starts you at 200 emails/day in sandbox mode — a limit that will kill your cold email campaigns before they start. Here's exactly how to request a quota increase and manage your limits like a pro.
Most people pick the wrong Hetzner server type for cold email and wonder why their deliverability suffers. Here's exactly which architecture to choose — and how to set it up correctly.
Most cold email problems start before you ever hit send — with dirty data entering your pipeline unchecked. Here's how to wire an email validation API directly into your lead flow so bad addresses never reach your sender.
Most people trying to scale cold email to 100K sends per month hit a wall — not because of copy, but because their infrastructure collapses under the load. Here's the exact system architecture that actually works.
Most cold email platforms check for replies every 15-30 minutes — and that lag is silently killing your response rates. Here's the exact IMAP polling strategy that catches every reply in under 2 minutes.
Most cold emailers overpay for cloud infrastructure by 300%. Here's exactly how to set up a Contabo VPS for cold email infrastructure — SMTP, DNS, and all — in under an hour.
Most cold emailers store leads in spreadsheets and wonder why their campaigns fall apart at scale. Here's how to use Supabase as a proper lead database — with real schemas, queries, and automation hooks that actually work.
Gmail caps you at 500 emails/day. Outlook at 300. SES can do millions — if you don't get banned first. Here's the real email sending limits comparison no provider wants you to read.
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