从stiger那儿找到了一个不同版本的bbsmail（其实是很久以前的事了）
用上去之后不成功...
Mar 1 00:21:45 zzxy sendmail[3511]: k1SGLjw4003511: from=<Tinro@newsmth.net>, size=1287, class=0, nrcpts=1, msgid=<114114370
4.7@newsmth.net>, proto=ESMTP, daemon=MTA, relay=[60.2.251.28]
Mar 1 00:21:45 zzxy sendmail[3514]: k1SGLjw4003511: Warning: program /usr/local/bbs/bin/bbsmail unsafe: Group writable direc
tory
Mar 1 00:21:46 zzxy sendmail[3513]: k1SGLjw4003511: to=<_P.Tinro@zzxy.org>, delay=00:00:01, xdelay=00:00:01, mailer=bbsmail,
pri=30430, dsn=5.3.0, stat=unknown mailer error 255
Mar 1 00:21:46 zzxy sendmail[3513]: k1SGLjw4003511: k1SGLkw4003513: DSN: unknown mailer error 255
Mar 1 00:21:46 zzxy sendmail[3513]: STARTTLS=client, relay=as.mtech.cn., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AE
S256-SHA, bits=256/256
退回到原来备份的bbsmail，仍然不成功...
Mar 1 21:16:28 zzxy sendmail[13445]: k21DGReN013445: from=<Tinro@newsmth.net>, size=1220, class=0, nrcpts=1, msgid=<11412189
86.1@newsmth.net>, proto=ESMTP, daemon=MTA, relay=[60.2.251.28]
Mar 1 21:16:28 zzxy sendmail[13448]: k21DGReN013445: Warning: program /usr/local/bbs/bin/bbsmail unsafe: Group writable dire
ctory
Mar 1 21:16:28 zzxy sendmail[13447]: k21DGReN013445: to=<_P.Tinro@zzxy.org>, delay=00:00:01, xdelay=00:00:00, mailer=bbsmail
, pri=30451, dsn=5.3.0, stat=unknown mailer error 2
Mar 1 21:16:28 zzxy sendmail[13447]: k21DGReN013445: k21DGSeN013447: DSN: unknown mailer error 2
Mar 1 21:16:34 zzxy sendmail[13447]: STARTTLS=client, relay=as.mtech.cn., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-A
ES256-SHA, bits=256/256
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FROM 59.66.134.36