Windows 10: How to stop Sys Admin from Bouncing messages - Outlook 2010 / Gmail

I have a .cvs file generated from Excel of 70 contacts including their emails. I think I have successfully imported them into a separate Contacts folder that I created (BDHG Contacts). They all look mapped correctly and properly formatted when I scroll through the BDGH Contacts view. I then created a Distribution List using all 70 email contacts. When I send to the list I usually get about 12 email notifications from the Sys Admin. They all say:
"The following recipient(s) cannot be reached:

SMITH on
The recipient has been deleted or has no e-mail address."
FYI I use Gmail Imap. I know the email addresses are good ones. Any idea of how to fix this?

Thanks much!

:)

 

Email fails to be delivered.

I am not receiving some emails to my main yahoo account. the message back says something along the lines of use @live.com address. I don't want to change my email address. How to I stop the messages from bouncing?

Original title: bouncing email

 

Sync Outlook Contacts / Calendar with Windows Phone 8

Thanks

My Outlook 2010 contacts are not automatically synced to my Gmail account! How do I do this?

 

The obvious question: has a particular contact been individually verified by message only to it, could be their ISP has the problem. I've had to do that with a list of contacts used by my class reunion newsletter, last time had 5 problems but only 1 was a true issue.

Such a problem can also exist when an ISP thinks the message is SPAM when sending to larger lists.

 

The email addresses work when sending individually. The "bounced" recipients email services are with different providers.

Microsoft told me it would be fixed if I removed my Gmail account from Outlook, re-started Outlook, and then re-installed Gmail. That did not work.

 

Can you address it using bcc: ? That way each recipient's mail server would only see it as being addressed to a single recipient, not the entire mailing list. May help to stop their Sys Admin rejecting it as spam.

 

Thanks for the suggestion. I will give this a try to see what happens. I don't think spam rejection is the issue, though, because I have 100 recipient DLs that I regularly send to without any issues. OH! Come to think of it I DO use Bcc with the other DLs.