If one were to compile the qmail code with -Wall -Werror, the following error is produced:

./compile tcpto.c
tcpto.c: In function ‘tcpto_err’:
tcpto.c:139:34: error: ‘firstwhen’ may be used uninitialized in this
function [-Werror=maybe-uninitialized]
      if ((firstpos < 0) || (when < firstwhen))
                            ~~~~~~^~~~~~~~~~~~

Is there a conditio

Currently SMTP API users need to parse responses to ehlo() manually. There should be a high level API for accessing such data, e.g. to retrieve the maximum size of messages, if 8 bit / utf-8 messages are accepted, etc.

Sample response:

250-PIPELINING
250-SIZE 200000000
250-ETRN
250-AUTH PLAIN LOGIN OAUTHBEARER
250-AUTH=PLAIN LOGIN OAUTHBEARER
250-ENHANCEDSTATUSCODES
250-8BITMIME