Migrting mail files from IRIX system to Suse (ext2)

I am replacing our corp. mail server with a SuSe 7.0 box. One question, can I simply shutdown sendmail on the Irix machine, copy the mail files to the SuSe box, and resume mail services? I think the sendmail server on the Irix system is older, probably 8.9.something, but I am sure it is not 8.11. Thankx for any info, CC