24.9.45.3 EightBitMode=strict
Reject unlabeled 8-bit input. Convert BITMIME to 7 bits as required by any delivery agent
withth e F=7 flag set (?§20.8.8 on page 764), or any SMTP server that does not advertise
BITMIME.
24.9.46 ErrorHeader
Set error message header V8 and later
When a notification of a mail error is sent to the sender, the details of the error are taken
from the text saved in the xf file (?§11.2.7 on page 401). The ErrorHeader option allows you
to prepend custom text ahead of that error text.
Custom error text is useful for sites that wish to offer help as part of the error message. For
example, one common kind of error message is notification of an unknown user:
----- Transcript of session follows -----
550 5.7.1 smith@wash.dc.gov... User unknown
----- Unsent message follows -----
This is the Title of the Book, eMatter Edition
Copyright ?© 2007 O??™Reilly & Associates, Inc. All rights reserved.
1028 | Chapter 24: The O (Options) Configuration Command
Here, the user smith is one that is unknown. A useful error help message for your site to
produce might be:
Common problems:
User unknown: the user or login name is wrong.
Host unknown: you mistyped the host part of the address.
----- Transcript of session follows -----
550 5.7.1 smith@wash.dc.gov... User unknown
----- Unsent message follows -----
The forms for the ErrorHeader option are as follows:
O ErrorHeader=text ?†? configuration file (V8.
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