I've been getting 'crochet.com01',crochet.com04', 'crochet.com06', 'crochet.com08', 'crochet.com11' for my newletters. I figured out that the number after crochet .com is the date because crochet.com11 I got on my email on Nov.11 and crochet.com04 I got on Nov.4, etc.