
A discount of 20 per cent will be available on new or additional mailings in March and April 2010.
Royal Mail said the move was in tune with discounts being offered on other media channels and was not designed to counteract any negative perceptions of direct mail in the wake of postal strikes this autumn.
Mark Thomson, media director at Royal Mail, said: "Advertisers and agencies alike are under pressure to deliver more for less. Most media channels are being underpinned with incentives including short-term price deals, value-added offers and shared risk opportunities and this initiative is a new approach for Royal Mail."
A Royal Mail spokesman added: "We've been planning this for a period of time, long before the strikes. As Mark has said, agencies and advertisers are under pressure to deliver more for less and this [discount] is a response to that."
The sale offer involves a 20 per cent discount on new or additional Mailsort 3 letter volumes. It is also available for Royal Mail's Sustainable Mail product, which is priced up to 4.7 per cent lower than normal Mailsort prices for mailings that meet environmental standards.
Advertisers wishing to take advantage of the mail sale must apply by 19 March 2010.
The offer applies to any organisation willing to increase direct mail volumes above normal levels for March and April 2010 compared to previous years. Applications can be made via from tomorrow, Thursday 3 December.
Users of direct mail were forced to reschedule campaigns during strikes mounted locally and nationwide in October. Members of the Communications Workers Union were striking over pay, conditions and plans for modernisation.