Import email addresses from Google Contacts before starting sending your campaigns with anothermailmerge.com to your mailing list.
1. Go to Add-ons > MailMerge > Import contacts (Gmail):
Choose one of the groups you want to import in your spreadsheet and validate
Once done, MailMerge will automatically list all your recipients in your spreadsheet
You can decide to start your campaign right away, or close the pop-up.