Subj : Re: Not able to recieve mail To : All From : Mike Roberts Date : Thu Jan 31 2019 19:18:38 Date: Fri, 10 Apr 2009 14:16:43 -0400 From: Mike Roberts To: HECTOR SANTOS Subject: Re: Not able to recieve mail Newsgroups: win.server.smtp.&.avs Message-ID: <1239387403.46.1239357124@winserver.com> References: <1239357124.46.1238964120@winserver.com> X-WcMsg-Attr: Rcvd X-Mailer: Wildcat! Interactive Net Server v7.0.454.5 Lines: 237 On 2009-04-10 4:51 AM, HECTOR SANTOS wrote to Mike Roberts: -> This appears to be a DNS (Domain Name Server) lookup issue. -> -> sapcbv : rejected - can not resolve yahoo.com -> -> In other words, its doing something like this: -> -> NSLOOKUP -query=mx yahoo.com -> -> which you can type from the dos command and it could not be resolved. -> -> If I type that command above now, I get this: -> -> Server: dns.mia.bellsouth.net -> Address: 205.152.144.23 -> -> Non-authoritative answer: -> yahoo.com MX preference = 1, mail exchanger = b.mx.mail.yahoo.com -> yahoo.com MX preference = 1, mail exchanger = c.mx.mail.yahoo.com -> yahoo.com MX preference = 1, mail exchanger = d.mx.mail.yahoo.com -> yahoo.com MX preference = 1, mail exchanger = e.mx.mail.yahoo.com -> yahoo.com MX preference = 1, mail exchanger = f.mx.mail.yahoo.com -> yahoo.com MX preference = 1, mail exchanger = g.mx.mail.yahoo.com -> yahoo.com MX preference = 1, mail exchanger = a.mx.mail.yahoo.com -> -> which are the servers to send mail too. What happen is that this -> didn't work for you. -> -> It generally means your connection with ISP has a DNS setup issue or -> they were down or their DNS servers were down or there is a firewall, -> etc, who knows. -> -> But before you can use WCSAP or send mail with WCSMTP, you must be -> able to do NSLOOKUP commands from the PC wcSMTP is running. Do it for -> other domains too: -> -> NSLOOKUP -query=mx gmail.com -> NSLOOKUP -query=mx santronics.com -> NSLOOKUP -query=mx microsoft.com -> NSLOOKUP -query=mx live.com -> -> When these return valid MX records, then you know your DNS resolution -> is working with the ISP connection. -> -> etc. -> -> -> Mike Roberts wrote: -> > Hello Hector, thanks for Your response. Here is a copy from my Log. Even If I -> > totally understood, I would not know how to fix this problem with mail from -> > Yahoo. -> > -> > Mike -> > -> > 20090403 21:11:42 00000043 ------------------------------------- -> > 20090403 21:11:42 00000043 version : 2.10 / 1.63 -> > 20090403 21:11:42 00000043 calltype : SMTP -> > 20090403 21:11:42 00000043 state : rcpt -> > 20090403 21:11:42 00000043 cip : 98.136.44.48 -> > 20090403 21:11:42 00000043 cdn : n76.bullet.mail.sp1.yahoo.com -> > 20090403 21:11:42 00000043 from : tnel003@yahoo.com -> > 20090403 21:11:42 00000043 hdn : n76.bullet.mail.sp1.yahoo.com -> > 20090403 21:11:42 00000043 rcpt : mike.roberts@holodeck.myip.us -> > 20090403 21:11:42 00000043 ruid : 1 -> > 20090403 21:11:43 00000043 sapfilter : pass (time:31) -> > 20090403 21:11:43 00000043 saprbl : pass (time:47) -> > 20090403 21:11:43 00000043 sapspf : none (time:16) -> > 20090403 21:11:43 00000043 sapcep : disabled -> > 20090403 21:11:45 00000043 DNS Error : 10061 -> > 20090403 21:11:45 00000043 sapcbv : rejected - can not resolve -> > yahoo.com -> > 20090403 21:11:45 00000043 result : reject (0) -> > 20090403 21:11:45 00000043 smtp code : 452 -> > 20090403 21:11:45 00000043 wcsap finish (2141 msecs) -> > 20090403 21:14:12 00000044 ------------------------------------- -> > -> > -> > -> > -> > -> > -> > On 2009-04-04 11:06 AM, HECTOR SANTOS wrote to Mike Roberts: -> > -> > -> Mike Roberts wrote: -> > -> > I am able to send out internet email, but when I try sending to my BBS, -> > I do -> > -> > not get the mail. Here is what I am seeing in my logs, How can I fix it, I -> > think -> > -> > it is a spam blocking problem, but do not know how to fix it. -> > -> > -> > -> > Mike -> > -> > -> > -> > 20090403 22:11:14 (07D4) MAIL FROM: ... -> > Sender -> > -> > validation pending. Continue. -> > -> > 20090403 22:11:16 (07D4) RCPT: Return Path not verifiable: -> > -> > (Rejected by WCSAP CBV)! -> > -> -> > -> The WCSAP*.LOG file will tell you the details. But it was CBV - -> > -> Callback Verification. -> > -> -> > -> WCSAP tried to call back the xxxxxxxxx@yahoo.com and YAHOO didn't like -> > -> it. Why? The WCSAP*.LOG session log for this will tell ya. -> > -> -> > -> It may be hard to follow but on a busy system the log lines will mixed -> > -> with all current SMTP sessions. So you need to make sure you group -> > -> the right lines together and thats done by the connection ID, column -> > -> #3 in the log: -> > -> -> > -> date time connection_id string -> > -> -> > -> You will be looking for the SAPCBV attempts. -> > -> -> > -> Here is an 2005 log example I have on hand for yahoo: -> > -> -> > -> 20050121 10:08:30 0001ea94 sapcbv : total mx records: 5 -> > -> 20050121 10:08:30 0001ea94 try mx : mx1.mail.yahoo.com ip: -> > -> 67.28.113.11 -> > -> 20050121 10:08:30 0001ea94 # connecting to 67.28.113.11 -> > -> 20050121 10:08:30 0001ea94 S: 220 YSmtp mta154.mail.re2.yahoo.com -> > -> ESMTP service ready -> > -> 20050121 10:08:30 0001ea94 C: NOOP WCSAP v2.01 Wildcat! Sender -> > -> Authentication Protocol http://www.santronics.com -> > -> 20050121 10:08:30 0001ea94 S: 250 OK -> > -> 20050121 10:08:30 0001ea94 C: HELO mail.winserver.com -> > -> 20050121 10:08:30 0001ea94 S: 250 mta154.mail.re2.yahoo.com -> > -> 20050121 10:08:30 0001ea94 C: MAIL FROM: <> -> > -> 20050121 10:08:30 0001ea94 S: 250 null sender <> ok -> > -> 20050121 10:08:30 0001ea94 C: RCPT TO: -> > -> 20050121 10:08:30 0001ea94 S: 250 recipient -> > -> ok -> > -> 20050121 10:08:30 0001ea94 C: RCPT TO: -> > -> -> > -> 20050121 10:08:30 0001ea94 S: 452 Too many recipients -> > -> 20050121 10:08:30 0001ea94 C: QUIT -> > -> 20050121 10:08:30 0001ea94 sapcbv : 250 -> > -> -> > -> The idea of CBV is when someone is sending you mail (from yahoo.com), -> > -> the theory that you should be able to write back to them. If you -> > -> can't, then its probably a bad address. -> > -> -> > -> So CBV tries to act like its going to send mail, but only goes as far -> > -> to issueing the: -> > -> -> > -> RCPT TO: -> > -> -> > -> if yahoo response with a 45x or 55x number, its bad. If 250, its good. -> > -> -> > -> But WCSAP goes one step further and ask the question: -> > -> -> > -> "ok, if yahoo says this address is ok, then lets try -> > -> a fake address to see if its accepts any thing!" -> > -> -> > -> That would be the line above: -> > -> -> > -> RCPT TO: -> > -> -> > -> where wcsap tries to see if YAHOO accepts any junk. If no, then its -> > -> WCSAP says: -> > -> -> > -> "Ok, we done the best we can. Yahoo is not accepting junk -> > -> but it did accept the first address of interest. So its -> > -> ok." -> > -> -> > -> If Yahoo had accepted the junk address, wcSAP assumes the site is a -> > -> open relay and thats normally bad. -> > -> -> > -> So check for the same activity in your logs. The above was 2005. -> > -> Yahoo might have changed policies and have a different result. -> > -> -> > -> -> > -> -> > -> -- -> > -> Hector, Engineering & Technical Support -> > -> Santronics Software, Inc. -> > -> http://www.santronics.com (sales) -> > -> http://www.winserver.com (support) -> > -> http://www.winserver.com/AupInfo (Online AUP Help) -> > -> Office: 305-248-3204 -> > -> -> -> -- -> Hector, Engineering & Technical Support -> Santronics Software, Inc. -> http://www.santronics.com (sales) -> http://www.winserver.com (support) -> http://www.winserver.com/AupInfo (Online AUP Help) -> Office: 305-248-3204 Hi Hector... But it does work for me, I get a screen full. I have no problems sending mail. But when I send mail to winserver from my Yahoo account, I can't get it. I did as You said above and I do get a whole screenfull of mx listings from Yahoo. Here is what I get yahoo.com MX preference = 1, mail exchanger = f.mx.mail.yahoo.com yahoo.com nameserver = ns8.yahoo.com yahoo.com nameserver = ns2.yahoo.com yahoo.com nameserver = ns5.yahoo.com yahoo.com nameserver = ns6.yahoo.com yahoo.com nameserver = ns3.yahoo.com yahoo.com nameserver = ns4.yahoo.com yahoo.com nameserver = ns1.yahoo.com a.mx.mail.yahoo.com internet address = 67.195.168.31 b.mx.mail.yahoo.com internet address = 66.196.97.250 c.mx.mail.yahoo.com internet address = 216.39.53.3 c.mx.mail.yahoo.com internet address = 216.39.53.2 d.mx.mail.yahoo.com internet address = 66.196.82.7 e.mx.mail.yahoo.com internet address = 216.39.53.1 f.mx.mail.yahoo.com internet address = 209.191.88.247 f.mx.mail.yahoo.com internet address = 68.142.202.247 g.mx.mail.yahoo.com internet address = 209.191.118.103 g.mx.mail.yahoo.com internet address = 206.190.53.191 ns2.yahoo.com internet address = 68.142.255.16 ns1.yahoo.com internet address = 68.180.131.16 ns4.yahoo.com internet address = 68.142.196.63 ns5.yahoo.com internet address = 119.160.247.124 But CBV does not allow me to get mail from yahoo.. It refuses it.. Any suggestions? Thanks! Mike --- Platinum Xpress/Win/WINServer v3.1 * Origin: Prison Board BBS Mesquite Tx //telnet.RDFIG.NET www. (1:124/5013) .