Convert headers to camel case

Closes #3405108

added 1 commit

• fa9f75f5 - Reverted manual header changes, added camelcase header formatting to

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changed title from Refactored email headers to camel case to Convert headers to camel case

Convert headers to camel case

added 1 commit

• 72aa004a - Added comment.

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added 5 commits

• 72aa004a...d940461a - 2 commits from branch project:1.x
• a721d809 - Refactored email headers to camel case
• 9ed009df - Reverted manual header changes, added camelcase header formatting to
• d0a1d94e - Added comment.

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merged