exim -odi a@a.test.ex b@b.test.ex
****
#
-# RCPTDOMAINMAX Limit advertised, second domain temp-rejected
+# RCPTDOMAINMAX Limit advertised, exim transport treats as 1
# Client should immediate-retry further MAIL transactions for remaining rcpts
server PORT_D
220 Hi there
250 LIMITS MAILMAX=10 RCPTDOMAINMAX=100
MAIL FROM
250 mail cmd good
-RCPT TO:<a@a.test.ex>
+RCPT TO:<a1@a.test.ex>
250 rcpt cmd 1 good
RCPT TO:<a2@a.test.ex>
250 rcpt cmd 2 good
250 message received
MAIL FROM
250 second mail cmd good
-RCPT TO:<b@b.test.ex>
+RCPT TO:<b1@b.test.ex>
250 rcpt cmd 1 good
RCPT TO
250 rcpt cmd 2 good
250 second message received
MAIL FROM
250 third mail cmd good
-RCPT TO:<c@c.test.ex>
+RCPT TO:<c1@c.test.ex>
250 rcpt cmd 1 good
DATA
352 go ahead
QUIT
220 bye
****
-exim -odi a@a.test.ex b@b.test.ex c@c.test.ex a2@a.test.ex b2@b.test.ex
+exim -odi a1@a.test.ex b1@b.test.ex c1@c.test.ex a2@a.test.ex b2@b.test.ex
****