Hey there. I was wondering if anyone could offer me some information about sending smoked, vacuum sealed, salmon through the mail for a christmas gift. The salmon is frozen now, and will be when I put it in the box, but will thaw during the journey. Is it safe to send smoked salmon through the mail? This means it would be unrefrigerated for possibly 2 whole day, but no more; i am sending it express. I thank you for your time and happy holidays!