The problem is sloved. Thank you very much for your help. That is my bad. I am really silly. I visited http://www.interazioni.it/qmail/ and found that I should delete the following in chkuser.patch to make it work with vpopmail (I am using vpopmail 5.3.26):
if (!stralloc_0 (&domain)) die_nomem(); vget_real_domain(domain.s, domain.a); domain.len = strlen (domain.s); if (domain.len > (domain.a - 1)) die_nomem();
Ah, I see. Thanks for the info.
Regards,
Bill Shupp
