Dodgy
I get unsolicited email from this company and the colour of the Unsubscribe text is hardcoded (inline) with a white colour on a white background. Shady company, I will never buy from them again. I can only imagine what they put in the dog food and claim otherwise. Very very dodgy.
Later edit. I have placed an order with them which is probably the reason I have been added to the mailing list automatically.
Response to reply:
Yo've sent me 3 marketing emails. The first one is hiding the Unsubscribe text with rgb(255, 255, 255) and the last one one is using a hex value for the white. Clearly your devs made the change to make sure the text is also hidden on older email clients.
I am a software engineer which is why I am able to understand what is going on.
Reply from Natural Instinct