bounce messages

Could some kind person please contact hans@strader.xs4all.nl and ask him to
fix the filters that generate bounces from things I send to PG mailing
lists? My attempts have failed.

I get this:

... while talking to strader.xs4all.nl:
<<< 550 5.7.1 <hans@strader.xs4all.nl>...   Please be informed that you are
currently blocked from sending email to this address. - If you feel this is
wrong, send an email to <pass095197@strader.xs4all.nl>. - After we have
received this email, you will be able to send email messages to this address
again. - You are receiving this error because we try to eliminate spam from
our site. - Sorry for the inconvenience!

I tried that and all I got was another bounce.


Thanks for any help

andrew