eliminate build errors

partly by commenting out stuff that'll need more work

src/pEpTransportMail.cc

@@ -137,7 +137,7 @@ namespace pEp {
 
             // move to startup()?
             mailio::smtps conn(login_smtp.server, login_smtp.port);
-            conn.authenticate(login_smtp.username, login_smtp.passphrase, login_smtp.auth_method);
+            conn.authenticate(login_smtp.username, login_smtp.passphrase, login_smtp.auth_method.smtps);
             conn.submit(mmsg);
         }
 
@@ -159,10 +159,13 @@ namespace pEp {
                 // and then populate rx_queue via conn_imap.select()
                 // would mean to make conn_imap a member of pEpTransportMail class instead of a local variable.
                 mailio::imaps conn_imap(login_imap.server, login_imap.port);
-                conn_imap.authenticate(login_imap.username, login_imap.passphrase, login_imap.auth_method);
+                conn_imap.authenticate(
+                    login_imap.username,
+                    login_imap.passphrase,
+                    login_imap.auth_method.imaps);
                 // get that mail from mailio
                 const std::string mailbox = "inbox";
-                conn_imap.fetch(&mailbox, message_id, &msg, false);
+                conn_imap.fetch(mailbox, message_id, msg, false);
 
 
                 // MIME-Decode is already done by mailio. We just need to translate the mailio-msg struct to a pep-msg struct.
@@ -180,12 +183,12 @@ namespace pEp {
                     &has_possible_pEp_msg);
                 throw_status(status);
 
-                if (msg == nullptr) {
+                if (msg_pep == nullptr) {
                     rx_queue.pop();
                     throw std::runtime_error("recvnext(): invalid message received.");
                 }
 
-                msg_pep = msg;
+                //msg_pep = msg;
                 rx_queue.pop();
             }
             return msg_pep;