Dear all: This note from a couple of months ago from a very very large software provider: We are taking a bit of a slow approach. The state of industry support is not quite there yet. I checked the top 20 domains we delivered to over the last 7 days which accounted for about 20% of our email volume. Of those, only 4 supported SMTPUTF8 and all were gmail. I am going to do a bit of a wider study or see if we can script the process so we can run it periodically on a larger data set. In reading through other material I have been coming across, the general suggestions I have seen say that providers that offer a UTF8 local part should also provide an alternate standard address. (underline is mine) I wonder if we have been too pragmatic and not dogmatic enough by suggesting the use of ASCII Aliases? Has it put the burden back to the ESP? Don Don Hollander Secretary General - UASG Skype: Don_Hollander