Undelivered Mail Returned to Sender

Hello,

hope someone can help me,
i have a exchange server and it works fine but sometimes i get the following error message back

552 5.3.4

    Message size exceeds fixed maximum message size (in reply to MAIL
FROM command)

but the size of the e-mail is not bigger then 1 mb.

so i want to change the fixed maximum message size in my exchange but i can't find settings for this.

hope somebody can help me.

regards
Sebastian Garcia

Best Regards, Sebastian Garcia