Postfix can't send above 5MB attachments. [UNSOLVED]

I changed the limits in main.cf but in logs i see this.

May 18 15:23:29 cohsh81n2c postfix/smtp[14805]: 28E90201E33: host gmail-smtp-in.l.google.com[74.125.128.27] said: 552 5.3.4 Message too big (in reply to end of DATA command)

It is like the gmail server said "552 5.3.4 Message too big" but when i use a different mail server to send the same attachments to the same email address it works. 

Any help?


Limits in main.cf
bounce_size_limit =  20480000
mailbox_size_limit =  20480000
message_size_limit =  20480000
virtual_mailbox_limit =  20480000