Asking someone to confirm after you have already been sending
them emails makes the process of confirmation pointless.
Having them confirm first generates a verifiable audit trail that not only proves that the subscriber came to you directly for information (and has your permission), but can increase your overall deliverability as well. This also shields you against any unwarranted complaints, as you have proof that they requested to receive email from you.
If you continue sending someone emails even if they don't
confirm, you still run into the exact same issue if anyone
ever marks a message as spam or makes a complaint. I'm
not 100% certain how infusion soft has this set up, but I
imagine the number of complaints this type of set up would
generate would be fairly high.
In addition, it's a really great way to filter out the casual
subscribers from the ones who will respond to your campaign.
Keeping your readers/subscribers involved is a great way to establish
relationships that can increase both your inbox visibility and customer
response.
But I will certainly take a deeper look into this, if
there is anything we can do to make the process
a little bit easier it is worth looking into.