34 extern const char smtp_220[4];
35 extern const char smtp_helo[6];
36 extern const char smtp_mail_from[12];
37 extern const char smtp_rcpt_to[10];
38 extern const char smtp_data[7];
39 extern const char smtp_to[5];
40 extern const char smtp_cc[5];
41 extern const char smtp_from[7];
42 extern const char smtp_subject[10];
43 extern const char smtp_quit[7];
44 extern const char smtp_crnl[3];
45 extern const char smtp_crnlperiodcrnl[6];