Lettre-type - Avis défavorable au sujet d'un postulant (à une entreprise)

Dear [Mr or Mrs or Sirs], I thank you for your letter of [date] concerning [nom]. I can confirm that he has worked for us from [date] to [date] as [fonction]. We do not feel to comment upon his reliability. If you wish to have any further information, please do not hesitate to contact me. My telephone number is [numéro]. Yours sincerely [votre nom] [votre fonction]