Hi Verkoop,
Before moving on, I would like to confirm the current situation:
1. Do you see the same delayed emails when using Outlook Web Access?
2. Does the delayed email have large attachments?
Please test to send from other email system, such as Hotmail, to see if the same issue occurred.
For more details, please refer to the link below:
Inbound mail flow
http://community.office365.com/en-us/wikis/exchange/inbound-mail-flow.aspx
Thanks,
Aaron Yuan
Before moving on, I would like to confirm the current situation:
1. Do you see the same delayed emails when using Outlook Web Access?
2. Does the delayed email have large attachments?
Please test to send from other email system, such as Hotmail, to see if the same issue occurred.
For more details, please refer to the link below:
Inbound mail flow
http://community.office365.com/en-us/wikis/exchange/inbound-mail-flow.aspx
Thanks,
Aaron Yuan