The current sources do not contain the phrase "On Behalf Of". While
I've not looked specifically at sources as of 4.77 I doubt that this
is Exim's fault.
AFAIK the "on behalf of" is shown in certain MUAs if Sender does not
match From.
@Hillel Bilman:
You may want to try setting:
local_from_check = false
maybe in addition to these (depending on the headers set by phplist):
local_sender_retain = true
untrusted_set_sender = *
See the manual for what each setting does.
David
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