It shouldn??™t cause problems because a good sender
address still appears in the SMTP envelope.
The Apparently-From: header should never be declared in the configuration file and should
not be added to conf.c.
25.12.2 Apparently-To:
When the message lacks a recipient sendmail
If the header of a mail message lacks recipient information (lacks all of the To:, Cc:, and
Bcc: header lines), sendmail adds an Apparently-To: header line and puts the recipient??™s
address from the envelope into the field of that line. This behavior is hardcoded into pre-
V8.7 sendmail, but beginning withV8.7, it can be tuned withth e NoRecipientAction option
(?§24.9.81 on page 1060).
The Apparently-To: header name is not defined in RFC2822. It is added by pre-V8.7 sendmail
because RFC2822 requires at least one To: or Cc: header, and neither is present.
RFC2821 specifically recommends against the use of the Apparently-To: header, so that
header should never be defined in the configuration file.
25.12.3 Auto-Submitted:
Why the bounce sendmail
When a message is returned because of an error or because a return receipt was requested,
V8 sendmail adds an Auto-Submitted: header. This header describes the reason for the
return:
Auto-Submitted: auto-generated (reason)
Auto-Submitted: auto-replied (reason) ?†? V8.12 and later
The reason can be one of four things.
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