Mailbox sizes and sending large emails

Dear all,

a client of mine has been trying to send an 18Mb file by email through a mailbox with a 10Mb capacity.

Now at first it may seem obvious that the problem lies in the capacity of the mailbox but I just wanted to check this out first if I may.

Does outgoing mail actually have anything to do with the mailbox itself? I thought it just went through the ISP, not the hosted mailbox account (in this case the two are seperate as the mailbox in question is part of my hosting package for hte client and I do not provide an ISP service).

Would increasing the mailbox capacity to 20Mb have any effect? I don't want to increase the cpapacity because I have a lot of users and increasing the capacity of mailboxes would lead me into having to get a new harddrive installed and I'm not at that stage yet.

Any thoughts would be gratefully received. Should I just send this guy to check his ISP's limits?

Cheers,

Jireh
PS. I am running a Red Hat ES box, with WHM/Cpanel and using exim.

 

 

 

 

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