Problem:Â Trying to forward some pictures I took on my iPhone via email. The total size for the attachments was about 20MB. Â After sending I got the following error message:
“Cannot Send Mail:Â An error occurred while delivering this message”
“Cannot Send Mail:Â The message was rejected by the server”
Solution:Â I checked the exchange logs and got an Event ID 1008.Â The event talked about an outdated or corrupt partnership with my iPhone.Â I also noticed another messages stating the â€œMaximum request length exceededâ€Â Which brought me to the solution. Â I followed the directions in the following Technet blog article(link below).Â Changed the <httpRuntime maxRequestLength=â€10240â€³/>Â setting to â€œ25600â€ or 25MB on my CAS server. Â Once the change was made, the emails passed without error.