Hi Garvin,
Thanks very much. I added that one line to the comments.php file this morning and so far so good. I would normally have seen quite a few trackbacks by now, but I haven't seen any. Tomorrow morning will be 24 hours and then I'll know for sure that they are really stopped.
The "other ...

Hi,
I am having problems with trackback spammers. Most seem to come from besturlsite.info, though some are for "cheap phentermine".
I found and followed instructions for shutting off trackbacks by installing an anti-spam plug-in. But that completely killed my ability to post to my blog or for ...