I am still fairly new to using Eloqua...and am using it quite differently than many users --- I strictly send transactional emails to our known client base (who is opted in globally).
Today, I launched my first major campaign ever in Eloqua. I used an email list of people that we routinely email via Outlook. They are known persons to our firm and we know, for a fact, that the email addresses are valid (I am in a heavily regulated industry where we use services to track emails we send).
Now that it's been several hours since launching my campaign, I went back into the campaign and the green "bubble" shows an abundant number of email addresses are marked by Eloqua as invalid. When I look at individual subscribers, they are all "globally subscribed."
Why would Eloqua think that the email address is invalid when I regualry send to these people via Outlook and my emails are delivered all the time?
We whitelisted the IP addresses on our servers, but would SPAM filters they enact on their end be causing this problem? (in other words, their offices have not yet whitelisted our IP addresses)?