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Email Marketing Term

What is Email Client?

Software or web application used to access and manage email, like Gmail, Outlook, or Apple Mail.

Email clients render your HTML emails for recipients. Unfortunately, they each render differently, causing display inconsistencies.

Major email clients and their quirks: - **Gmail**: Clips emails over 102KB, aggressive spam filtering - **Outlook**: Poor CSS support, strips many styles - **Apple Mail**: Best rendering, privacy features inflate opens - **Yahoo**: Generally good, some CSS limitations

Mobile vs desktop rendering adds another layer. Over 60% of emails are opened on mobile, making responsive design essential.

Testing across email clients before sending is crucial. Tools like Litmus and Email on Acid help preview rendering.

Examples

  • Gmail web, Gmail app, and Gmail in Outlook render differently
  • Outlook 2019 doesn't support CSS max-width
  • Dark mode in email clients can invert colors unexpectedly

Tips for Email Client

  • โœ“Test emails in top 5 clients before sending
  • โœ“Use inline CSS for maximum compatibility
  • โœ“Design for mobile first (60%+ of opens)
  • โœ“Have a plain text fallback version

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