segundo o google , n há tradução
mas encontrei isto Definições de spam
verbo
send the same message indiscriminately to (large numbers of recipients) on the Internet.
"Experts at Sophos have warned users to be wary of unsolicited emails claiming to contain photographs, after a Trojan horse was spammed to internet users."
substantivo
irrelevant or inappropriate messages sent on the Internet to a large number of recipients.
"If you're a consumer and you get spam from a "legitimate" company, call them up and let them know how angry you are."
a canned meat product made mainly from ham.
"Sammy Leslie and Ultan Bannon know that wine lovers want good wines first and good trimmings after, so there are no stray tins of spam here."
Exemplos
It appears the issue lies with spam filtering software used by a number of internet service providers and web servers.