can I connect multiple domain emails to smoove or any other app compatible to WIX, as so to send multiple email marketing campaigns using one application? i’m new to this 
Hello,
I assume the following article might help you: Purchasing a Personalized G Suite Mailbox .
You would be better suited going through Wix Support about this issue as it is not a code issue.
https://support.wix.com/en/article/contacting-wix-support
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