Vrijwel alle UPC-mailservers staan nog steeds op meerdere blacklists, geen idee hoe ze het voor elkaar krijgen

(Blijkbaar wordt er helemaal geen filtering/monitoring op gedaan)
62.179.121.31 is listed by spam.dnsbl.sorbs.net
62.179.121.32 is listed by spam.dnsbl.sorbs.net
62.179.121.33 is listed by bl.spamcop.net
62.179.121.34 is listed by ix.dnsbl.manitu.net
62.179.121.34 is listed by spam.dnsbl.sorbs.net
62.179.121.34 is listed by bl.spamcop.net
62.179.121.36 is listed by spam.dnsbl.sorbs.net
62.179.121.36 is listed by bl.spamcop.net
62.179.121.37 is listed by bl.spamcop.net
62.179.121.39 is listed by spam.dnsbl.sorbs.net
62.179.121.40 is listed by spam.dnsbl.sorbs.net
62.179.121.41 is listed by spam.dnsbl.sorbs.net
62.179.121.41 is listed by dnsbl.sorbs.net
62.179.121.42 is listed by spam.dnsbl.sorbs.net
62.179.121.42 is listed by bl.spamcop.net
62.179.121.43 is listed by bl.spamcop.net
62.179.121.44 is listed by spam.dnsbl.sorbs.net
62.179.121.45 is listed by spam.dnsbl.sorbs.net
62.179.121.46 is listed by spam.dnsbl.sorbs.net
62.179.121.47 is listed by spam.dnsbl.sorbs.net
62.179.121.48 is listed by spam.dnsbl.sorbs.net
62.179.121.50 is listed by spam.dnsbl.sorbs.net
62.179.121.51 is listed by spam.dnsbl.sorbs.net
62.179.121.52 is listed by spam.dnsbl.sorbs.net
62.179.121.53 is listed by spam.dnsbl.sorbs.net
(Controle via mxtoolbox.com)
Er zijn dus een *paar* mailservers die niet op een blacklist staan, maar de meesten staan er al minstens sinds dinsdag op.