Blog
Cold email, data and deliverability guides
The LeadCanal cold email blog shares practical guides from the team that builds B2B lists and runs cold email campaigns every week. Read them to find the right contacts, reach the inbox and, finally, get replies.
- Written by practitioners
- Step-by-step how-tos
- Updated as rules change
Latest guides
Browse by topic or read the newest posts first.
DKIM Explained: How DKIM Protects Your Emails
How to Create an SPF Record for Your Domain
How to Set Up DMARC Step-by-Step for Your Domain
What is DMARC? Complete Beginner Guide to Email Authentication
SPF vs DKIM vs DMARC: What’s the Difference?
A vs AAAA Record, Difference Between IPv4 and IPv6 DNS Records
TXT Record Lookup, Check DNS TXT Records for Any Domain Online
What Is an NS Record? A Complete Guide to DNS Nameservers
How I Set Up Google Workspace MX Records Without Breaking My Business Email
CNAME Records Explained: Check CNAME Records, Troubleshoot, and Optimize Your DNS
Send Cold Email Without Getting Blocked: 12 Practical Steps That Actually Work
What the cold email blog covers
Every guide on this cold email blog comes from client work, so the advice has been tested on real campaigns. First, we cover list building: how to define an ideal customer profile, find decision-makers and verify every address before it reaches your sending tool.
Next comes deliverability. For example, you will find setup guides for SPF, DKIM and DMARC, plus advice on domains, mailboxes and warm-up schedules. We also explain what to check when replies suddenly drop. Because Gmail, Yahoo and Outlook keep changing their sender rules, we update these posts when the rules change.
Finally, we write about the campaign itself, such as subject lines, short first emails and follow-up timing. In addition, we review the tools we use for finding emails and checking copy for spam words. Most guides also link to a free LeadCanal tool, so you can test what you read on your own domain right away.
Further reading
- Google email sender guidelines Gmail requirements for authentication, spam rates and unsubscribe links.
- Yahoo sender best practices What Yahoo Mail expects from bulk and cold email senders.
- FTC CAN-SPAM Act compliance guide The US rules for commercial email, including opt-out handling.
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