Emailrelay package shows "symbol not found" error

Hi,

I installed emailrelay to have a central email proxy for my NAS, IOT devices, etc. but after installation of the package the executable shows this error. Does anybody know what is wrong and perhaps where I can report this error?

root@OpenWrt:/etc/init.d$ emailrelay
Error relocating /usr/bin/emailrelay: _ZNSt19basic_ostringstreamIcSt11char_traitsIcESaIcEEC1Ev: symbol not found

Cheers,
Nils