A: Hi,

The quality of the lists is key in the process. List cleaning is a fundamental part of email marketing. It’s essential to have a suppression policy that removes uninterested subscribers from the lists campaign by campaign, and of course, to never add any email address without double opt-in, in order to avoid potential spam traps. For an ISP, it’s better to send a campaign to 100 interested subscribers than to 1,000 where only 100 are actually interested.

I hope it helps!

Best,

Alicia