Blog
Email Deliverability Guides & Best Practices
Guides, best practices, and intelligence from the InboxEagle team to help you land in the inbox every time.
Authentication7 min
Shopify DMARC Fix: Make Order Emails Pass Alignment
You found out why order confirmations fail authentication: Shopify is still sending from its default sender. Here is the fix, in order. Authenticate the domain, publish the DMARC record, prove it in a real order email, and only then tighten the policy.
Authentication12 min
Salesforce Email Deliverability: The Complete Guide (2026)
Everything that decides whether Salesforce emails reach the inbox: the Deliverability access level, SPF, DKIM and DMARC, Marketing Cloud sending domains and IPs, bounce management, daily limits and spam fixes.
Authentication8 min
HubSpot Email Deliverability: The Complete Guide (2026)
Everything that decides whether HubSpot emails reach the inbox: authentication, IPs, bounces, list hygiene, Sales Hub Sequences and the bulk sender rules, with the fix for each.
Analytics13 min
Mailchimp Deliverability: Why Emails Miss the Inbox and Fixes
Mailchimp deliverability problems rarely start inside Mailchimp. They start in your domain, your list and your sending history. Here is how to diagnose why campaigns land in spam or Promotions, what to fix first, and what to do after a list or domain change.
Authentication26 min
How to Check Your DMARC Record (and Fix What's Broken)
Check whether your DMARC record is actually valid, not just present, and fix the specific errors, from duplicate records to alignment failures, when it's not working.
Analytics16 min
Why Are My Emails Going to Spam? 12 Ways to Fix It
Why emails go to spam and how to fix it — 12 systematic checks covering authentication, sender reputation, bounces, complaints, audience quality and inbox placement, plus how InboxEagle helps you investigate.
E-commerce4 min
BFCM Email Volume Ramp: A Work-Back Schedule
Your Black Friday send is several times larger than a normal week. Count the steps between the two, then work back from 27 November so the last increase lands with days to spare.
Authentication6 min
Gmail Bulk Sender Requirements: What You Need to Know in 2026
Gmail has enforced bulk sender requirements since February 2024, and ramped up to temporary and permanent rejections in November 2025. Here's exactly what the DMARC requirement means, and how to check whether you're actually compliant.
Authentication6 min
How to Read DMARC Reports and Roll Out Safely
DMARC aggregate reports arrive as unreadable XML. Here's how to read them, tell a legitimate sender from a spoofer, and move from p=none to p=reject without blocking your own mail.
Automation3 min
Bot Clicks in Klaviyo: How to Find and Filter Them
Security software clicks the links in your emails before a person does. Klaviyo records those clicks, and unless you filter them they flow into your segments, splits and attribution.
Klaviyo4 min
How to Lower Your Klaviyo Bill by Suppressing Profiles
Klaviyo bills on active profiles, and a suppressed profile is not active. Suppressing the subscribers who stopped engaging cuts the count your plan is priced on and removes the mail that hurts your reputation.
Authentication4 min
Shopify Email Deliverability: Setup and Limits
Shopify sends your order confirmations and your campaigns from one sender address. Until you authenticate the domain, that address is not even yours. Here is what to set up and what Shopify will not show you.