SBS 2008 (Exchange Server) not accepting large emails

I can send a 17MB attachment to someone on Office 365 but I can't to this particular SBS 2008 (Exchange 2007) user. It bounces with the message that the email is too big. I swear I have bumped up all the limits on their Exchange Server to 25MB but it is still bouncing. Am I not setting it in the right place(s)?
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LockDown32OwnerAsked:
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David Johnson, CD, MVPOwnerCommented:
you need to change the limit in both the users mailbox and transport, connector, and global rules
https://support.microsoft.com/en-gb/help/322679/how-to-set-size-limits-for-messages-in-exchange-server
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LockDown32OwnerAuthor Commented:
That article is for Exchange Server 2000 and 2003. Doesn't track with 2007 (as far as where things are). I have already set the:

Organization Configuration=>Hub Transport=General Settings

Recipient Configuration=>Mailbox=>User=>MailFlowMessageSizeRestrictions

That is two. Are there any more?
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