I am afraid i do not. The error indicates that the problem lies within the sendmail app itself. I would try to upgrade your system sendmail if possible, or try to use another app (google for "sendmail alternatives").

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)