Email spam filter gone mad

I've just noticed that my ISP's spam filter has just gone in to overdrive and has been randomly blocking comments, not just on this blog but also replies when I have commented elsewhere. Apologies if its blocked yours or I haven't replied. I now have over 50 emails going back a month to sift through so if I have missed anything I should be able to make amends.

I plan to change my blogger email address which should help.