The maintenance dose of buprenorphine HCl and naloxone HCl sublingual tablets is generally in the range of 4 mg/1 mg buprenorphine/naloxone to 24 mg/6 mg buprenorphine/naloxone per day depending on the individual patient. Dosages higher than this have not been demonstrated to provide any clinical advantage.
Greylisting is a term used by services such as URIBL to designate aspects of sender reputation and overall deliverability. Currently, URIBL maintains a set of whitelists, blacklists and greylists. According to URIBL's website, a greylist is defined as:
Grey hair in scripture also refers to the speckled hair of sheep and goats, for example the wages of Jacob: And it happened, at the time when the flocks conceived, that I lifted my eyes and saw in a dream, and behold, the rams which leaped upon the flocks were streaked, speckled, and grayspotted.. Genesis 31:10.