Let say I have total 2000 emails.
I segmented:
500 email - high engaged emails
1500 email - the rest of the list
Campaign A - send to 500 email segment (assuming will have better engagement rate)
Campaign B - send the same email 6 hours after Campaign A.
Will the ESP (Gmail/Hotmail/Yahoo mail etc.) see the same email from Campaign A & B as same email?
Will sending Campaign A first, helps to increase deliverability for Campaign B?
Thanks.