Customizing cell format/script when sending emails from Gsheets? - email

Question

Does anyone know how to customize the format of an email body in a script or within the cell formula when sending an email from google sheets?
The first attachment is the incorrect email body the script is sending
.
And the second attachment is the correct email body format I need the script to send
.
Code below:
// has been sent successfully.
var EMAIL_SENT = 'EMAIL_SENT';
/**
* Sends non-duplicate emails with data from the current spreadsheet.
*/
function sendEmails2() {
var sheet = SpreadsheetApp.getActiveSheet();
var startRow = 2; // First row of data to process
var numRows = 1000; // Number of rows to process
// Fetch the range of cells A2:D1000
var dataRange = sheet.getRange(startRow, 1, numRows, 1000);
// Fetch values for each row in the Range.
var data = dataRange.getValues();
for (var i = 0; i < data.length; ++i) {
var row = data[i];
var emailAddress = row[0]; // First column
var subject = row[3]; // Second column
var message = row[3]; // Third column
var emailSent = row[3]; // Fourth column
if (emailSent !== EMAIL_SENT) { // Prevents sending duplicates
MailApp.sendEmail(emailAddress, subject, message);
sheet.getRange(startRow + i, 4).setValue(EMAIL_SENT);
// Make sure the cell is updated right away in case the script is interrupted
SpreadsheetApp.flush();
}
}
}

Answer 1

Issue:
When plain text is added to the email body, a line break is added after ~78 characters, as you can see, for example, here: Gmail API - plaintext word wrapping.
To avoid this, you should add an HTML body instead of plain text, using MailApp.sendEmail(recipient, subject, body, options).
Also, you need to add HTML line breaks (<br>) if you want to maintain the line breaks from the cell value (\n). You can use String.prototype.replace() for that.
Solution:
Replace this:
MailApp.sendEmail(emailAddress, subject, message);
For this:
MailApp.sendEmail(emailAddress, subject, "", {
htmlBody: message.replace(/\n/g,'<br>')
});
Reference:
Gmail API - plaintext word wrapping
MailApp.sendEmail(recipient, subject, body, options)
String.prototype.replace()