Dianne Skoll skrev den 2018-02-21 16:37:
We do a HEAD request and it works on most URL shorteners.The concern voiced in another email about overloading Google's infrastructure is quite charming and quaint.
+1 some with icla could add this to spamasssassin with https://github.com/smfreegard/DecodeShortURLsso if yes problem is solved imho, but should we consider all _URIHOSTS_ as shortners ?
unless thay are confirmed not to do this