Error 553 on Outlook and query regarding confirming email addresses on Outlook
I have received an email about Error 553 which I have tried to resolve but am now wondering if I did the right think. It asked me to go into my outlook account settings and check the email addresses. My main email address came up, but so did one at btopenworld.com which I did not know I had. I am now not sure what to do with that address and how did that get set up without me being aware of it?
I also open my husband's emails on my iPhone, especially when we are away from home, so could the error message have come through because I answered one of his emails for him from outlook at home?