How can I send a mail to a person with multiple addresses in a cell

Using only the split function directly in this field is incorrect advice.

Also, you are using functions incorrectly in the Set Variable module. Looks like you pasted something from AI, which will not work in Make. Delete this.

Also, you do NOT need an iterator module, as the Sheets Module already outputs one bundle per result. Delete this.

Do this instead:

{{split(replace(1.`4`; "/\s*[,;\n\r]+\s*/g"; newline); newline)}}

(copy-paste the entire line above into the field exactly as shown)

Hope this helps! If you are still having trouble, please provide more details.

I’d recommend going through the Make Academy if you haven’t yet!

Here are some useful links and guides you can use to learn more on how to use the Make platform, apps, and app modules. I found these useful when I was learning Make, and hope they might benefit you too —

Learn Make

How-Tos

@samliew