Large speed improvement; huge on large mail, almost none on small mail
RBLcheck checks whether mail was sent through well-known spam sending hosts.
Url: http://os2.besse.nl/
Source:
Large speed improvement; huge on large mail, almost none on small mail
RBLcheck checks whether mail was sent through well-known spam sending hosts.
Url: http://os2.besse.nl/
Source: