• Re: help please: MX problem ["did not issue MAIL/EXPN/VRFY/ETRN ... MTA

    From Richard Site X@21:1/5 to All on Wed Sep 29 08:38:15 2021
    El domingo, 20 de diciembre de 2009 a la(s) 20:51:48 UTC-6, The Derfer escribió:
    Dec 11 15:27:08 mail-relay sendmail[27330]: nBBKR5nv027319: to=<u...@oracle.com>, delay=00:00:02, xdelay=00:00:02, mailer=esmtp, pri=120552, relay=rcsinet11.oracle.com. [148.87.113.123], dsn=5.1.8, stat=User unknown

    What is curious? rcsinet11.oracle.com. said: RFC1893 permanent failure
    "Bad sender's system address". It is its right as to tell you, that
    the recipient does not exist.

    Does anyone know how to fix this?

    Use a proper mail address.
    But why would that error happen the mail is sent from the dbserver and
    not
    if sent from the mail relay box itself?
    I get two different results.

    https://youtu.be/Lu-veC-uE_k

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