It is not possible to change the quotation introduction added when answering mail.
Andre Klapper
ak-47@gmx.net

# Changing the "On date, person wrote:" string when replying

You might need to install the dconf-editor package to perform these steps.

Install dconf-editor

Advanced users can change this string.

Open the dconf-editor application.

Navigate to `org.gnome.evolution.mail`.

Enter the preferred quotation string as the value for the key `composer-message-attribution`.

The default string in English is: `"On ${AbbrevWeekdayName}, ${Year}-${Month}-${Day} at ${24Hour}:${Minute} ${TimeZone}, ${Sender} wrote:"`

The following placeholders are available:

`{Sender}`

`{SenderName}`

`{SenderEMail}`

`{AbbrevWeekdayName}`

`{WeekdayName}`

`{AbbrevMonthName}`

`{MonthName}`

`{Day}` (format: 01-31)

`{ Day}` (format: 1-31)

`{24Hour}`

`{12Hour}`

`{AmPmUpper}`

`{AmPmLower}`

`{DayOfYear}` (format: 1-366)

`{Month}` (format: 01-12)

`{Minute}`

`{Seconds}`

`{2DigitYear}` (e.g. 15 for the year 2015)

`{Year}`

`{TimeZone}`