- if (!mh_strcasecmp (np->m_host, mp->m_next->m_host)
- && !mh_strcasecmp (np->m_mbox, mp->m_next->m_mbox)
- && np->m_bcc == mp->m_next->m_bcc)
+ if (!strcasecmp (np->m_host ? np->m_host : "",
+ mp->m_next->m_host ? mp->m_next->m_host : "") &&
+ !strcasecmp (np->m_mbox ? np->m_mbox : "",
+ mp->m_next->m_mbox ? mp->m_next->m_mbox : "") &&
+ np->m_bcc == mp->m_next->m_bcc)