Changelog
2.1.3
- Improved tracking system. Now fewer of your emails will end up in "Spam". 
- Increased the number of imported rows from GSheet to 10000. 
- If the number of rows being imported exceeds 90% of the available daily message limit, then the campaign is created as a split send with a split send portion size of 90% of the available daily message limit. 
- Added option to specify the interval between sending messages. 
- Added option to specify the number of messages sent per day when split sending. 
- Now bounced messages are transferred to the trash, thereby freeing the "Inbox" from uninformative messages.