mailscanner breaks etrn

[Dan Hollis]

If I run sendmail by itself (/etc/rc.d/init.d/sendmail), etrn works:

Connected to x.com (x.x.x.x).
Escape character is '^]'.
220 x.com ESMTP Sendmail 8.13.1/8.13.1; Wed, 11 Jan 2006 14:33:39 -0800
ehlo customer.com
250-x.com Hello customer.com [y.y.y.y], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-8BITMIME
250-SIZE
250-DSN
250-ETRN
250-AUTH LOGIN PLAIN GSSAPI DIGEST-MD5 CRAM-MD5
250-DELIVERBY
250 HELP
ETRN customer.com
250 2.0.0 Queuing for node customer.com started

If I run mailscanner (/etc/rc.d/init.d/MailScanner), etrn is disabled:

Connected to x.com (x.x.x.x).
Escape character is '^]'.
220 x.com ESMTP Sendmail 8.13.1/8.13.1; Wed, 11 Jan 2006 14:31:58 -0800
ehlo customer.com
250-x.com Hello customer.com [y.y.y.u], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-8BITMIME
250-SIZE
250-DSN
250-AUTH LOGIN PLAIN GSSAPI DIGEST-MD5 CRAM-MD5
250-DELIVERBY
250 HELP
ETRN customer.com
502 5.7.0 Sorry, we do not allow this operation

I have spent hours trying to figure out why mailscanner disables etrn, but 
failed. Anyone know what's up with this?

-Dan

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