ContributionsMost RecentMost LikesSolutionsOutlook 2021 receiving emails but will not send blueyonder email address I am using Outlook 2021. I have a blueyonder email address. I can receive emails in Outlook but emails I try to send are sitting in my outbox. I can send and receive using K9 mail on my mobile phone. I can send and receive on my iPad. I can send and receive in Virgin webmail. emails from Virgin webmail are received everywhere except in Outlook.