Speedup if we call SendEmail() more than once in one program's execution.
Speedup if we call SendEmail() more than once in one program's execution.

ubtue/ub_tools,ubtue/ub_tools,ubtue/ub_tools,ubtue/ub_tools,ubtue/ub_tools,ubtue/ub_tools,ubtue/ub_tools,ubtue/ub_tools