How do I use the 250ok Design Subject Line Previewer?

With the 250ok Design Subject Line Previewer users can see how their “From” name, subject line, emojis, and preheader text render across multiple clients and devices, helping marketers avoid subject line cutoffs and issues displaying characters.

Users can access the Subject Line Previewer by clicking Design > Pre-Flight Checks > Subject Line Viewer.

After filling out the From Name, Subject Line, and Pre-Header Text fields users can scroll to view how this information would appear on multiple email platforms including…

  • AOL Mail
  • Apple Mail 11
  • Gmail
  • Gmail App (iOS)
  • iPad Mini
  • iPhone 5S (SM)
  • iPhone 6S (MD)
  • iPhone 6S+ (LG)
  • Outlook 2007
  • Outlook 2010
  • Outlook 2013
  • Outlook 2016
  • Outlook 2019
  • Outlook.com
  • Thunderbird
  • Windows 10 Mail
  • Yahoo! Mail

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