Cold email guides and resources
Practical, no-fluff guides on deliverability, dedicated IPs, warmup, and inbox placement. The same thinking that shapes how SendKit is built.
Cold Email Best Practices for 2026
Cold Email Best Practices for 2026
Cold email still works in 2026, but the easy version is dead. The teams winning now treat it as infrastructure and targeting, not volume and clever subject lines.
Akshay Prasath · 11 min read
Cold Email Deliverability: The Complete Guide
Cold Email Deliverability: The Complete Guide
Deliverability is not one setting. It is six things working together: infrastructure, authentication, warmup, list quality, content, and engagement. Here is how each one moves the needle.
Akshay Prasath · 11 min read
Cold Email Infrastructure Setup Guide: Domains, Mailboxes, and DNS
Cold Email Infrastructure Setup Guide: Domains, Mailboxes, and DNS
Cold email infrastructure is the set of domains, mailboxes, and DNS records you send from. Set it up in the wrong order and you spend weeks undoing it. Here is the right order.
Akshay Prasath · 10 min read
Dedicated IP vs Shared IP for Cold Email: What Actually Changes
Dedicated IP vs Shared IP for Cold Email: What Actually Changes
A dedicated IP means your sending reputation is yours alone. A shared pool means it is an average of everyone on it. Here is when that difference actually matters.
Akshay Prasath · 9 min read
Email Authentication: SPF, DKIM, and DMARC Explained
Email Authentication: SPF, DKIM, and DMARC Explained
SPF, DKIM, and DMARC are three DNS records that prove you are allowed to send from your domain. Without all three, mailbox providers treat you as suspicious by default.
Akshay Prasath · 10 min read
How to Avoid the Spam Folder With Cold Email
How to Avoid the Spam Folder With Cold Email
Spam filters weigh three things: who you are, what you sent, and how people react. Most cold email lands in spam on the first one, not the second.
Akshay Prasath · 9 min read
How to Improve Cold Email Deliverability: A Fix-It Playbook
How to Improve Cold Email Deliverability: A Fix-It Playbook
When deliverability slips, fixing things in the wrong order wastes days. Here is the diagnostic sequence I work through, from fastest fix to slowest.
Akshay Prasath · 10 min read
How to Reduce Your Cold Email Bounce Rate
How to Reduce Your Cold Email Bounce Rate
A bounce rate above 2 to 3 percent tells mailbox providers your data is dirty. Most of it comes from two fixable sources: unvalidated addresses and strict secure email gateways.
Akshay Prasath · 10 min read
How to Warm Up Email Accounts for Cold Outreach
How to Warm Up Email Accounts for Cold Outreach
Warmup teaches mailbox providers you are a real sender before you run real campaigns. Skip it and a clean setup still lands in spam. Here is how to do it right.
Akshay Prasath · 9 min read
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