> - more and more ISP infrastructure practices OP25B for IPv4.
OP25B = Outbound Port 25 Blocking. it disallows ISP customers to run
SMTP server, or use SMTP server outside of the ISP network.
maybe it is japanese-local acronym, google shows me japanese
pages only.itojun _______________________________________________ Ietf mailing list [email protected] https://www1.ietf.org/mailman/listinfo/ietf
