Why do I get Error 452 when using my distribution list in Outlook

[smedway]

I've been using Outlook and distribution lists for several years but recently
my bcc distribution list emails bounce back, returning several recipients
(but not all) with the following error message - 452 Error: too many
recipients. I've tried detect and repair and have also checked the email
addresses that bounce back but they are different ones each time! My list has
less than 100 addresses.

 

[Russ Valentine [MVP-Outlook]]

That error is from your mail server, not Outlook. Check with your mail
provider.

 

[smedway]

That's most helpful. Thank you.

That error is from your mail server, not Outlook. Check with your mail
provider.
--
Russ Valentine
[MVP-Outlook]

I've been using Outlook and distribution lists for several years but
recently
my bcc distribution list emails bounce back, returning several recipients
(but not all) with the following error message - 452 Error: too many
recipients. I've tried detect and repair and have also checked the email
addresses that bounce back but they are different ones each time! My list
has
less than 100 addresses.