I am testing my transactional emails currently and have noticed that none of the emails are being sent to Hotmail addresses. I have tested with other addresses with personal domains and they receive fine, so too does Gmail account. But any Hotmail emails don't seem to get received.
Is there a reason for this? Is there a setting I'm missing?
Best Answer
This is common with webmail providers. Look into the other answers on this forum about setting up DKIM/DomainKeys/SenderId/SPF or consider moving to a hosted SMTP service.
Source: Me. https://magento.stackexchange.com/a/7632/336