[Coco] Please keep spam off list

[Dennis Bathory-Kitsz]

Hi all,

If you have a spam issue, please contact me directly with full headers. I
will work with the pairlist team to see what's happening.

There is new spam onslaught in the last few days that has different
characteristics. I'm not getting them, but my own server's spam filter is
working overtime (discards > 25,000 daily).

Please do not fill the coco list with this.

Many thanks,
Dennis