Hi, im finding that if i use the same data, same email, same everything but just use different senders / servers im getting massive differences in open rate, wirg my own account "sendgrid" i get an average of 16% open over last few months with my data. Then i give it to an indian based bulk mail specialist as a test, and the same email gets an open rate of just 1%
So my question is who is best to use, i dont mind using a SMTP like mailjet or someone, or a sending company - anyone got any tricks or good feedback?
#differences #due #open #rates #server