Paul Dacre, the veteran editor of the Daily Mail, has launched a verbal missile at his successor Geordie Greig, alleging that he was "economic" with the truth when he asked the paper's soft tone had brought back advertisers.

Mr Dacre is forcefully defending his 26-year stint in the editor's chair, pointing out that he has "increased and made profits in profit". He added that "Mr Greig should avoid giving interviews until he achieves a small fraction" of what mail journalists accomplished under his editorship.

"Admirable chap he may be, but Geordie Greig, in his Lunch With The FT, is as economic with the actualité [news] Brexit, "said Mr Dacre. "He claims 265 advertisers came back to the mail in his year as editor. In fact, more than that number left during the same period. "

The late brings to light the tensions at Associated Newspapers, the newspaper division of the Daily Mail and General Trust where Mr. Dacre, a prominent Brexiter, serves as a chairman and editor-in-chief.

During Mr Dacre's tenure, the Mail was one of the most influential and divisive publications in Britain, as it was feared for its coverage by politicians and celebrities.

But the paper's caustic and pugnacious instincts – including a headline labeling judges 'Enemies of the People' for allegedly stymying Brexit – had raised unease with both advertisers and its proprietor Viscount Rothermere, who is happy with the more upbeat tone of the Greig era.

In his FT interview, Mr Greig, a supporter of the remain campaign for Britain to stay in the EU, cast himself as "a very commercial editor" whose leadership was already wooed back advertisers including Nationwide and TalkTalk worried about the Mail's strident coverage of politics ,

The Daily Mail Group Media said: "Over the past 12 months. The advertising revenue from the 265 advertisers in Newspapers more than offset the loss from those advertisers we did not see in the past financial year. "

In his letter, Mr. Dacre argued the FT presented a "ludicrous caricature" of the Mail under his editorship, without reflecting the achievements of the campaigns he launched.

After my return, at the end of the twenty-seven years in the chair, is unrecognizable from the in a year, he wrote.

Lord Rothermere allowed me to put together an award for the quality of his journalism and his countless great campaigns Alzheimer's awareness, dignity for the elderly or justice for [the murdered teenager] Stephen Lawrence. "

Mr Dacre concluded by calling on his successor to show more humility and avoid touting successes prematurely.

"As for Mr. Greig, I congratulate him on making a solid startup as an editor and continuing on so many of those campaigns but I'm sure he'll forgive me for suggesting that he (or his PR) he has notched up a small fraction of those journalists' achievements, "he wrote.

Mr Dacre and Mr Greig have strongly different styles and their rivalry stretches back to Mr Greig's time as editor of the Mail on Sunday; the couple have barely spoken over the past year, according to colleagues. "Hey loathes dacre," said one acquaintance of Mr Greig. "And he's one of the very few to stand up for Dacre within the newsroom."

During the interview, Mr. Greig described how his editorship differed from his predecessor: "On the one day, I go and address all the staff. This has never been done at the Daily Mail. "So he emphasized the paper's less abrasive tone:" We're going to have the roll of thunder when we need to make it, but it's going to have the embrace of compassion. "

Within the Mail, Mr. Greig has been working on the Dacre era – building in builders to rip out the newsroom's woodpaneling, installing a kitchen for David Hockney's work in his office.

Mr Greig declined to comment on his predecessor's letter. "At the heart of all newspapers," he said in his interview with the FT, "It's hard to believe that they are willing to go to the limits of the law and good taste. , , Provocation is a good thing. "