Hello sfhowes, Thank you for your response and I tried to follow your instructions. In one of the two accounts, I couldn't change '''POP mail server''' to '''IMAP mail server'''. I changed the '''Port to 993''' but I couldn't change the '''Default to 993'''. Also, the outgoing SMTP server only appeared in the Default account, and not the other. I tried sending emails to both accounts, but the emails only appeared in the Sent folders and not the Inbox folders. The funny thing is that the emails appeared in the Inbox on my other computer! Will you be able to make the changes on this computer from your end? Once again, thank you so much for your help, and I look forward to hearing from you. Best regards, Sheila Herman