I never knew, that someone would certify few lines of Python code, but Softpedia did so:
Your product "IMAP utils 0.2" has been tested by the Softpedia labs and found to be completely clean of adware/spyware components. We are impressed with the quality of your product and encourage you to keep this high standards in the future. To assure our visitors that "IMAP utils 0.2" is clean, we have granted it with the "100% FREE" Softpedia award. Moreover, to let your users know about this certification, you may display this award on your website, on software boxes or inside your product.
I still wonder why simplest "product" I ever released is getting so much publicity…