Harlot, which includes a mix of gossip, trends, shopping and humour, is aimed at upmarket women aged between 25 and 45.
The mailout is adapted from The Scarlet Letter, a Scarlet-branded e-mail launched last year that attracted 65,000 subscribers.
The new version, promoted through the Scarlet website at , is sent to subscribers every Wednesday morning.
It aims to appeal to similar readers to Scarlet, but with a more irreverent treatment of celebrities and gossip.
The move follows last week’s launch of Scarlet’s dating website, .
Scarlet launches online gossip magazine
The team behind women's glossy Scarlet has launched a spin-off weekly magazine sent to readers by e-mail that aims to be a rival to gossip mailouts such as Holy Moly and Popbitch.