Quote:
Originally Posted by seongpinas316
iContact and Constant contact has a reputable name in email marketing services you can use both of them 
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Yes I agree that both are good. they have better delivery rate but do they help in avoiding spam detection for non opt-in mails which might have been tagged as spam if sent otherwise? As i have not used any of the commercial service so have no comparison data. Actually i am looking for a spam detection rate between commercial and free service for same set of non opt-in emails. I need this data because I am about to send 100k targeted and personalized but non opt-in emails.