cmd buf flush ddd bytes
SMTP<< 250-myhost.test.ex Hello the.local.host.name [ip4.ip4.ip4.ip4]
250-SIZE 52428800
+ 250-LIMITS MAILMAX=1000 RCPTMAX=50000
250-8BITMIME
250-PIPELINING
250-STARTTLS
cmd buf flush ddd bytes
SMTP<< 250-myhost.test.ex Hello the.local.host.name [ip4.ip4.ip4.ip4]
250-SIZE 52428800
+ 250-LIMITS MAILMAX=1000 RCPTMAX=50000
250-8BITMIME
250-PIPELINING
250 HELP