Device Previews guides and tutorials
29 practical MailSlurp resources
Posts
Why Mailchimp Emails Go to Spam or Promotions (and What to Fix)
Diagnose why a Mailchimp campaign landed in spam, Outlook Junk, or Gmail Promotions. Check authentication, audience health, content, rendering, and real inbox placement before you resend.
Read moretechnicalWhy HubSpot Marketing Emails Go to Spam (and How to Diagnose It)
Trace a HubSpot marketing email from contact eligibility to Gmail or Outlook placement. Fix authentication, graymail, test-recipient, content, and rendering problems with a repeatable pre-send check.
Read moretechnicalSalesforce Email Deliverability: Settings, Placement, and Previews
Diagnose Salesforce email delivery from org access settings through authentication, subscriber data, inbox placement, and device rendering. Learn which test answers each failure.
Read moretechnicalMailerLite Campaign Not Converting? Check Placement and Mobile Layout
Diagnose a weak MailerLite campaign from subscriber groups and inactivity through spam placement, domain authentication, link scans, and mobile or Outlook rendering.
Read moretechnicalKlaviyo Emails Going to Spam? Diagnose Campaigns and Flows
Find out why Klaviyo campaigns or flows land in spam. Check branded sending domains, engagement segments, Smart Sending, ecommerce content, inbox placement, and device rendering before the next send.
Read moretechnicalBrevo Says Delivered but the Email Is in Spam: What to Check
Understand why a Brevo campaign can be marked delivered while landing in spam. Check domain authentication, sender reputation, Brevo reports, inbox placement, and the final email render.
Read moretechnicalHow to Preview a Mailchimp Test Email Across Devices
Use MailSlurp as an email preview tool for Mailchimp test emails. Check email rendering across Gmail, Outlook, iPhone, Android, light mode, and dark mode.
Read moretechnicalSalesforce Marketing Cloud Email Preview Testing Before Launch
Preview Salesforce Marketing Cloud test sends after subscriber data, dynamic content, tracking links, images, and final HTML are applied. Use MailSlurp device previews for Gmail, Outlook, mobile, and dark mode checks.
Read moretechnicalKlaviyo Email Preview Testing: Preview Test Sends Before Launch
Preview Klaviyo test emails after personalization, tracking links, images, and final HTML are applied. Use MailSlurp device previews for Gmail, Outlook, mobile, and dark mode checks.
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