John C Klensin writes:
RFC2821 specifies, as "recipients buffer" in 4.5.3.1, that a minimum
of 100 RCPT commands must be accepted, and is quite specific about
what happens in limits are exceeded.
I thought that applies to recipients for the same message.
MAIL FROM
RCPT TO
RCPT TO
RCPT TO
...
DATA
The other case is not covered AFAICT:
MAIL FROM
RCPT TO
DATA
MAIL FROM
RCPT TO
DATA
...
Arnt