The Signal Journal
Cold Email Blog
Tips, strategies, and field-tested guides for cold email success, deliverability, AI personalization, and outbound sales.
Jun 19, 2026
Own SMTP for Cold Email: When to Use It and How to Set Up
Should you send cold email through your own SMTP instead of a vendor's pool? Here is when bring-your-own SMTP wins, what it costs, and how to set it u...
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Jun 19, 2026
Why Are My Emails Going to Spam? How to Stop Emails Going to Spam in Gmail, Outlook and Cold Outreach
Emails going to spam usually comes down to authentication, sender reputation, and a few sending habits. Here are the nine causes that matter, plus the...
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