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Re: FYI bouncemail complaint

I made a partial response to RISKS, particularly taking issue with
item number 9.

Errors-To: should be completely ignored.  The internet mail standards
clearly state that error notifications should be sent to the envelope
return address.

Mailers which support Errors-To: trick list administrators into
thinking that Errors-To: is some sort of standard.  They then
sometimes set the envelope return address to something completely
stupid, like the list submission address.  When such a misconfigured
list encounters a standards-conforming mailer, instant mail loop.

Sendmail v8 is by default configured to ignore Errors-To:

_.John G. Myers		Internet: jgm+@CMU.EDU
			LoseNet:  ...!seismo!ihnp4!wiscvm.wisc.edu!give!up