Using '@' in user name with "mount_smbfs"

[Jerry]

I am stumped as to how I can accomplish using a user name with an '@'
in it with the "mount_smbfs" command/

Assuming a user name of: user at domain.com, how would I get it accepted
by the mount_smbfs command.

/usr/sbin/mount_smbfs -N -f 0644 -U me -W WORKGROUP //user at domain.com@WIN-PC/Share $HOME/Win-Pictures

I have tried both single and double quotation marks, but that fails.

Thanks

-- 
Jerry
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