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I'm getting log entries like this:

> Apr  2 12:55:53 ralph postfix/smtpd[15788]: 779DFC6D76: 
> client=unknown[99.29.103.142], sasl_method=LOGIN, sasl_username=joelqw

This is one of my users' Blackberry. Notice that Postfix (or maybe it's
Dovecot, in the sasl verification) is saying it can't do a reverse
lookup on the sending IP. But:

> # host 99.29.103.142
> 142.103.29.99.in-addr.arpa domain name pointer 
> adsl-99-29-103-142.dsl.hstntx.sbcglobal.net.

As far as I know, this is the only Blackberry using this mail server.
Other hosts/domains/devices don't have this problem. Can someone suggest
what I might do to cure this?

- --
Glenn English
g...@slsware.com

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