My wife and I both use Android Outlook on our phones and Office Outlook on laptops. We have virgin mobiles and broadband. Our accounts are configured for IMAP. Normal text emails send OK. However, attachments result in send errors. This has worked fine for years and only developed in the last 2-3 weeks.
This is the error message from the email that bounces back when my wife tries to send a photo. I've removed my email address:
"This is an automatically generated Delivery Status Notification.
Delivery to the following recipients failed permanently:
Reason: This is the mail system at host know-smtprelay-11-imp.
I am sorry to have to inform you that your message, "FW: Message Delivery Failure", could not be delivered to [REMOVED]
The remote server returned the below error when attempting delivery:
[MOD EDIT: Personal and private information has been removed from this post, the edited email address still linked to a live email address. Please do not post personal or private information in your public posts. Please review theForum Guidelines]
OK. It looks like during an Outlook for Android upgrade our SMTP and IMAP mail settings defaulted to virginmedia.com. Switching them back to ntlword.com seems to have fixed the issue but it doesn't make sense as only sending attatchments caused an issue?