troubleshooting Question

554 mail server errors

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sasllcFlag for United States of America asked on
OutlookEmail Software
5 Comments4 Solutions262 ViewsLast Modified:
I need to send an email to 80 customers.  I put all 80 email addresses in the "Bcc" field in my Outlook 2010, just as I've done in the past with no problem.  But this time when I 'Send', it kicks out all 80 addresses, saying "554 mail server permanently rejected message (#5.3.0)".  I'm hoping someone here can give me some direction so I don't waste a lot of time searching for a solution in the wrong place.

Could this be caused by my email provider, which is Network Solutions?  Or could it be caused by a setting in Outlook, or something about Windows 10 Pro?  I can't imagine it is a problem at the customer level, since all 80 are kicking out immediately.  

I did send two of them out individually, and that worked fine.  I don't want to test it by putting all 80 email addresses in the normal "To" field, because that's the whole reason I'm trying to use the "Bcc" field.
ASKER CERTIFIED SOLUTION
Yuval_Shohat
Computer Co-ordinator Team Leader

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