Outlook for Mac

Having trouble sending email to distribution list on Mac with Outlook

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Older post from March 18, 2016. Details may be out of date.

Question asked on Mar 18, 2016

this is the error I am getting when trying to send a contact group (distribution list) of 48 members.


5.5.2 Syntax error. j10sm5713409igx.15 - gsmtp

error code 17099

Help please

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