On 9/12/23 10:45 PM, Stephen J. Turnbull wrote:
Stephen Daniel writes:
Will bounce processing still work?
I think so. Pretty sure bounce processing on the bouncing side doesn't care who the envelope sender is, it is based on the RFC 822 sender, which is the Sender header field if set and the From field if Sender is not present.
Actually, I think all modern MTAs will return DSNs (bounces) to the envelope sender (MAIL FROM address)[1] which for list mail is the, possibly VERPed, listname-bounces address. If this is altered to a different address, bounce processing won't work.
[1] See https://www.rfc-editor.org/rfc/rfc5321.html#section-4.4
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan