g = string_cat(g, US" (best guess record for domain)");
s = expand_string(US"$sender_address_domain");
+if (s && *s)
+ return string_append(g, 2, US" smtp.mailfrom=", s);
+
+s = sender_helo_name;
return s && *s
- ? string_append(g, 2, US" smtp.mailfrom=", s)
+ ? string_append(g, 2, US" smtp.helo=", s)
: string_cat(g, US" smtp.mailfrom=<>");
}