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Resolving "451 Could not complete sender verify callout" errors

Discussion in 'Plesk for Linux - 8.x and Older' started by whitecurve, Dec 5, 2007.

  1. whitecurve

    whitecurve Guest

    It seems that some exim mail servers implement sender verify callout and when my clients send mails to users on these servers the mails do not reach them.

    They instead get a bounce back informing them
    Remote host said: 451 Could not complete sender verify callout

    Does any know how to resolve this on a plesk 8.+ server...?
  2. Satoriya

    Satoriya Guest