Email delivery delays to Yahoo addresses
Email messages addressed to Yahoo domains (yahoo.com, yahoo.ca, etc.) from McGill mail servers are currently being delayed. It seems the Yahoo server has "greylisted" McGill email, probably due to a large quantity of emails coming from McGill within a short period of time.
Mail is delivered eventually, but the delays can be anywhere from 15 minutes to 4 hours, depending on which the yahoo destination server is the recipient.
We apologize for any inconvenience this causes and thank you for your patience.