Yahoo Mail Appearing in Shibboleth Service Logs

[It Meme]

Hi List:

We have been running aShibboleth IdP service at our university for last
three years - we do not allow point blank federation - i.e. each SP is
added individually.

We have started to notice Yahoo mail appearing as the entityID in our IdP
log files - but we do not have any allowed SP with that entityID.

Would you know where the requests are coming from and under what scenario?
Thanks.


http://ca-mg6.mail.yahoo.com/neo/launch?
http://36ohk6dgmcd1n-c.c.yom.mail.yahoo.
http://ca-mg5.mail.yahoo.com/neo/launch?
http://ca-mg6.mail.yahoo.com/neo/launch#
http://ca-mg6.mail.yahoo.com/neo/launch?
http://us.mc1257.mail.yahoo.com/mc/welco
http://ca.mg4.mail.yahoo.com/neo/launch?
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