[qmailadmin] [SPAM] Whitelist rDNS for a single server
Greetings. I hope this list is still intact and that I'm on-topic. I've searched for a solution and haven't been able to come up with anything. I've got a problem sprung up recently and can't quite figure out how to get around it. While I'm waiting for a bureaucracy to unsnaggle some DNS information on their side, is there anyway for us to whitelist a single mail server that's being rejected for not having rDNS? The mail server is known to us and I feel comfortable with taking this action. Hopefully this won't be a permanent solution but just a dirty hack while I wait for others to do their jobs. We've got a vanilla Inter7 installed vpopmail/qmail system and I have not been able to figure out of this is do-able or not. If it's possible how can I go about doing so? Thanks for any help or pointers. Rob Wright debian...@poncacity.net !DSPAM:4e55237132717306493938!
Re: [qmailadmin] [SPAM] Whitelist rDNS for a single server
http://cr.yp.to/ucspi-tcp/rblsmtpd.html Edit your tcp.smtp file and put the address in and set RBLSMTPD= and it will bypass the RBL check for that IP address. Afterwards, rebuild your tcp.smtp.cdb file (depending on how your built your toaster it'll be as easy as qmailctl cdb, or some other manual command) Hope that helps. On 11-08-24 9:14 AM, Rob Wright debian...@poncacity.net wrote: Greetings. I hope this list is still intact and that I'm on-topic. I've searched for a solution and haven't been able to come up with anything. I've got a problem sprung up recently and can't quite figure out how to get around it. While I'm waiting for a bureaucracy to unsnaggle some DNS information on their side, is there anyway for us to whitelist a single mail server that's being rejected for not having rDNS? The mail server is known to us and I feel comfortable with taking this action. Hopefully this won't be a permanent solution but just a dirty hack while I wait for others to do their jobs. We've got a vanilla Inter7 installed vpopmail/qmail system and I have not been able to figure out of this is do-able or not. If it's possible how can I go about doing so? Thanks for any help or pointers. Rob Wright debian...@poncacity.net !DSPAM:4e5524ad32716954217386!
[qmailadmin] Re: [SPAM] Whitelist rDNS for a single server
That would take care of things if the rejection is due to an RBL, but the rejection is stated as being due to lack of rDNS, which is different. The only thing I know of that rejects due to missing rDNS (using qmail) is spamdyke (a very good anti-spam tool btw). What specifically is causing the reject? You might post a sample from your smtp log if you can't tell. If it's spamdyke, then the spamdyke config has several ways of whitelisting. -- -Eric 'shubes' On 08/24/2011 09:19 AM, Tren Blackburn wrote: http://cr.yp.to/ucspi-tcp/rblsmtpd.html Edit your tcp.smtp file and put the address in and set RBLSMTPD= and it will bypass the RBL check for that IP address. Afterwards, rebuild your tcp.smtp.cdb file (depending on how your built your toaster it'll be as easy as qmailctl cdb, or some other manual command) Hope that helps. On 11-08-24 9:14 AM, Rob Wrightdebian...@poncacity.net wrote: Greetings. I hope this list is still intact and that I'm on-topic. I've searched for a solution and haven't been able to come up with anything. I've got a problem sprung up recently and can't quite figure out how to get around it. While I'm waiting for a bureaucracy to unsnaggle some DNS information on their side, is there anyway for us to whitelist a single mail server that's being rejected for not having rDNS? The mail server is known to us and I feel comfortable with taking this action. Hopefully this won't be a permanent solution but just a dirty hack while I wait for others to do their jobs. We've got a vanilla Inter7 installed vpopmail/qmail system and I have not been able to figure out of this is do-able or not. If it's possible how can I go about doing so? Thanks for any help or pointers. Rob Wright debian...@poncacity.net !DSPAM:4e552bc232714998021379!
Re: [qmailadmin] Re: [SPAM] Whitelist rDNS for a single server
Thanks for the reply. It's definitely not spamdyke, as we do not have this installed. When Inter7 did the setup for is SpamAssassin was installed. Here's what I've got in my log file, it's qmail-smtpd doing the rejection. @40004e5539281689fb3c tcpserver: ok 10664 mail.poncacity.net:70.254.229.3:25 :70.254.229.27::53562 @40004e5539281aedc6a4 CHKUSER accepted rcpt: from rwri...@callisto.poncacity.net:unknown: remote callisto.poncacity.net:unknown:70.254 .229.27 rcpt rwri...@poncacity.net : found existing recipient @40004e5539281db9851c qmail-smtpd: senders must have valid reverse DNS @40004e5539281dbe47dc tcpserver: end 10664 status 256 Part of the problem here is that I can't figure out what they've hacked to get qmail-smtpd to do the rejection. In my /var/qmail/control directory there is an 'rdns' file with a value of 1; rdns checking is either on or off. Any further ideas? I suppose this may be a lesson for the boss to install your own mail server but that bridge is already crossed. If there's no clear answer I'll just have to call Inter7 for support and let them deal with it. Rob On Wednesday 24 August 2011 11:49:44 Eric Shubert wrote: That would take care of things if the rejection is due to an RBL, but the rejection is stated as being due to lack of rDNS, which is different. The only thing I know of that rejects due to missing rDNS (using qmail) is spamdyke (a very good anti-spam tool btw). What specifically is causing the reject? You might post a sample from your smtp log if you can't tell. If it's spamdyke, then the spamdyke config has several ways of whitelisting. http://cr.yp.to/ucspi-tcp/rblsmtpd.html Edit your tcp.smtp file and put the address in and set RBLSMTPD= and it will bypass the RBL check for that IP address. Afterwards, rebuild your tcp.smtp.cdb file (depending on how your built your toaster it'll be as easy as qmailctl cdb, or some other manual command) Hope that helps. On 11-08-24 9:14 AM, Rob Wrightdebian...@poncacity.net wrote: Greetings. I hope this list is still intact and that I'm on-topic. I've searched for a solution and haven't been able to come up with anything. I've got a problem sprung up recently and can't quite figure out how to get around it. While I'm waiting for a bureaucracy to unsnaggle some DNS information on their side, is there anyway for us to whitelist a single mail server that's being rejected for not having rDNS? The mail server is known to us and I feel comfortable with taking this action. Hopefully this won't be a permanent solution but just a dirty hack while I wait for others to do their jobs. We've got a vanilla Inter7 installed vpopmail/qmail system and I have not been able to figure out of this is do-able or not. If it's possible how can I go about doing so? Thanks for any help or pointers. Rob Wright debian...@poncacity.net !DSPAM:4e553ce632711021618303!
Re: [qmailadmin] Re: [SPAM] Whitelist rDNS for a single server
On 8/24/2011 2:03 PM, Rob Wright wrote: Thanks for the reply. It's definitely not spamdyke, as we do not have this installed. When Inter7 did the setup for is SpamAssassin was installed. Here's what I've got in my log file, it's qmail-smtpd doing the rejection. @40004e5539281689fb3c tcpserver: ok 10664 mail.poncacity.net:70.254.229.3:25 :70.254.229.27::53562 @40004e5539281aedc6a4 CHKUSER accepted rcpt: from rwri...@callisto.poncacity.net:unknown: remote callisto.poncacity.net:unknown:70.254 .229.27 rcptrwri...@poncacity.net : found existing recipient @40004e5539281db9851c qmail-smtpd: senders must have valid reverse DNS @40004e5539281dbe47dc tcpserver: end 10664 status 256 Part of the problem here is that I can't figure out what they've hacked to get qmail-smtpd to do the rejection. In my /var/qmail/control directory there is an 'rdns' file with a value of 1; rdns checking is either on or off. Any further ideas? I suppose this may be a lesson for the boss to install your own mail server but that bridge is already crossed. If there's no clear answer I'll just have to call Inter7 for support and let them deal with it. Install postfix as a smarthost? Do network tests there (excluding one IP from the reverse DNS requirement is done in the config file) then pass the message onto Qmail. Something like smtpd_client_restrictions = check_client_access cidr:/etc/postfix/skip_reverse_sender.cidr reject_unknown_reverse_client_hostname Inside the .cidr you'd have 1.2.3.0/29 OK -- Darek Rob On Wednesday 24 August 2011 11:49:44 Eric Shubert wrote: That would take care of things if the rejection is due to an RBL, but the rejection is stated as being due to lack of rDNS, which is different. The only thing I know of that rejects due to missing rDNS (using qmail) is spamdyke (a very good anti-spam tool btw). What specifically is causing the reject? You might post a sample from your smtp log if you can't tell. If it's spamdyke, then the spamdyke config has several ways of whitelisting. http://cr.yp.to/ucspi-tcp/rblsmtpd.html Edit your tcp.smtp file and put the address in and set RBLSMTPD= and it will bypass the RBL check for that IP address. Afterwards, rebuild your tcp.smtp.cdb file (depending on how your built your toaster it'll be as easy as qmailctl cdb, or some other manual command) Hope that helps. On 11-08-24 9:14 AM, Rob Wrightdebian...@poncacity.net wrote: Greetings. I hope this list is still intact and that I'm on-topic. I've searched for a solution and haven't been able to come up with anything. I've got a problem sprung up recently and can't quite figure out how to get around it. While I'm waiting for a bureaucracy to unsnaggle some DNS information on their side, is there anyway for us to whitelist a single mail server that's being rejected for not having rDNS? The mail server is known to us and I feel comfortable with taking this action. Hopefully this won't be a permanent solution but just a dirty hack while I wait for others to do their jobs. We've got a vanilla Inter7 installed vpopmail/qmail system and I have not been able to figure out of this is do-able or not. If it's possible how can I go about doing so? Thanks for any help or pointers. Rob Wright debian...@poncacity.net !DSPAM:4e553f8932715197284813!
Re: [qmailadmin] Re: [SPAM] Whitelist rDNS for a single server
SPAMCONTROL Maybe? http://www.fehcom.de/qmail/spamcontrol/README_spamcontrol.html Invoking the environment variable MFDNSCHECK in the qmail-smtpd startup script enables globally the DNS check for the envelope's Sender. Example: #!/bin/sh export MFDNSCHECK= . Additionally, the environment variable may be defined individually within a cdb of tcpserver/sslserver. Typically, this is done for non-trusted hosts within a tcpservers cdb: 127.0.01:allow,RELAYCLIENT= :allow,MFDNSCHECK= If environment variable MFDNSCHECK is not set, qmail-smtpd does not perform this DNS MX check. Rick Quoting Rob Wright debian...@poncacity.net: Thanks for the reply. It's definitely not spamdyke, as we do not have this installed. When Inter7 did the setup for is SpamAssassin was installed. Here's what I've got in my log file, it's qmail-smtpd doing the rejection. @40004e5539281689fb3c tcpserver: ok 10664 mail.poncacity.net:70.254.229.3:25 :70.254.229.27::53562 @40004e5539281aedc6a4 CHKUSER accepted rcpt: from rwri...@callisto.poncacity.net:unknown: remote callisto.poncacity.net:unknown:70.254 .229.27 rcpt rwri...@poncacity.net : found existing recipient @40004e5539281db9851c qmail-smtpd: senders must have valid reverse DNS @40004e5539281dbe47dc tcpserver: end 10664 status 256 Part of the problem here is that I can't figure out what they've hacked to get qmail-smtpd to do the rejection. In my /var/qmail/control directory there is an 'rdns' file with a value of 1; rdns checking is either on or off. Any further ideas? I suppose this may be a lesson for the boss to install your own mail server but that bridge is already crossed. If there's no clear answer I'll just have to call Inter7 for support and let them deal with it. Rob On Wednesday 24 August 2011 11:49:44 Eric Shubert wrote: That would take care of things if the rejection is due to an RBL, but the rejection is stated as being due to lack of rDNS, which is different. The only thing I know of that rejects due to missing rDNS (using qmail) is spamdyke (a very good anti-spam tool btw). What specifically is causing the reject? You might post a sample from your smtp log if you can't tell. If it's spamdyke, then the spamdyke config has several ways of whitelisting. http://cr.yp.to/ucspi-tcp/rblsmtpd.html Edit your tcp.smtp file and put the address in and set RBLSMTPD= and it will bypass the RBL check for that IP address. Afterwards, rebuild your tcp.smtp.cdb file (depending on how your built your toaster it'll be as easy as qmailctl cdb, or some other manual command) Hope that helps. On 11-08-24 9:14 AM, Rob Wrightdebian...@poncacity.net wrote: Greetings. I hope this list is still intact and that I'm on-topic. I've searched for a solution and haven't been able to come up with anything. I've got a problem sprung up recently and can't quite figure out how to get around it. While I'm waiting for a bureaucracy to unsnaggle some DNS information on their side, is there anyway for us to whitelist a single mail server that's being rejected for not having rDNS? The mail server is known to us and I feel comfortable with taking this action. Hopefully this won't be a permanent solution but just a dirty hack while I wait for others to do their jobs. We've got a vanilla Inter7 installed vpopmail/qmail system and I have not been able to figure out of this is do-able or not. If it's possible how can I go about doing so? Thanks for any help or pointers. Rob Wright debian...@poncacity.net !DSPAM:4e55424432714216820005!
[qmailadmin] Re: [SPAM] Whitelist rDNS for a single server
Sorry, that's something I've never seen before. I'm guessing it's a patch to qmail-smtpd, but that's not worth much. As a short term work-around, you might try adding an entry to the tcp.smtp file for the server in question, with the RELAYCLIENT= variable set, eg: 70.254.229.27:RELAYCLIENT=,...(plus whatever other variables your server uses typically) This will essentially make your server an open relay for that IP address. I expect this would work, but be careful with it. And don't forget to qmailctl cdb after changing the tcp.smtp file. -- -Eric 'shubes' On 08/24/2011 11:03 AM, Rob Wright wrote: Thanks for the reply. It's definitely not spamdyke, as we do not have this installed. When Inter7 did the setup for is SpamAssassin was installed. Here's what I've got in my log file, it's qmail-smtpd doing the rejection. @40004e5539281689fb3c tcpserver: ok 10664 mail.poncacity.net:70.254.229.3:25 :70.254.229.27::53562 @40004e5539281aedc6a4 CHKUSER accepted rcpt: from rwri...@callisto.poncacity.net:unknown: remote callisto.poncacity.net:unknown:70.254 .229.27 rcptrwri...@poncacity.net : found existing recipient @40004e5539281db9851c qmail-smtpd: senders must have valid reverse DNS @40004e5539281dbe47dc tcpserver: end 10664 status 256 Part of the problem here is that I can't figure out what they've hacked to get qmail-smtpd to do the rejection. In my /var/qmail/control directory there is an 'rdns' file with a value of 1; rdns checking is either on or off. Any further ideas? I suppose this may be a lesson for the boss to install your own mail server but that bridge is already crossed. If there's no clear answer I'll just have to call Inter7 for support and let them deal with it. Rob On Wednesday 24 August 2011 11:49:44 Eric Shubert wrote: That would take care of things if the rejection is due to an RBL, but the rejection is stated as being due to lack of rDNS, which is different. The only thing I know of that rejects due to missing rDNS (using qmail) is spamdyke (a very good anti-spam tool btw). What specifically is causing the reject? You might post a sample from your smtp log if you can't tell. If it's spamdyke, then the spamdyke config has several ways of whitelisting. http://cr.yp.to/ucspi-tcp/rblsmtpd.html Edit your tcp.smtp file and put the address in and set RBLSMTPD= and it will bypass the RBL check for that IP address. Afterwards, rebuild your tcp.smtp.cdb file (depending on how your built your toaster it'll be as easy as qmailctl cdb, or some other manual command) Hope that helps. On 11-08-24 9:14 AM, Rob Wrightdebian...@poncacity.net wrote: Greetings. I hope this list is still intact and that I'm on-topic. I've searched for a solution and haven't been able to come up with anything. I've got a problem sprung up recently and can't quite figure out how to get around it. While I'm waiting for a bureaucracy to unsnaggle some DNS information on their side, is there anyway for us to whitelist a single mail server that's being rejected for not having rDNS? The mail server is known to us and I feel comfortable with taking this action. Hopefully this won't be a permanent solution but just a dirty hack while I wait for others to do their jobs. We've got a vanilla Inter7 installed vpopmail/qmail system and I have not been able to figure out of this is do-able or not. If it's possible how can I go about doing so? Thanks for any help or pointers. Rob Wright debian...@poncacity.net !DSPAM:4e5542de32716100613893!
Re: [qmailadmin] Re: [SPAM] Whitelist rDNS for a single server
I believe that is for sending mail only ... not receiving. If I am not mistaken. Bill http://www.goodcleanemail.com http://www.freebsdrocks.net http://www.centosrocks.net On Wed, Aug 24, 2011 at 2:28 PM, Eric Shubert e...@shubes.net wrote: Sorry, that's something I've never seen before. I'm guessing it's a patch to qmail-smtpd, but that's not worth much. As a short term work-around, you might try adding an entry to the tcp.smtp file for the server in question, with the RELAYCLIENT= variable set, eg: 70.254.229.27:RELAYCLIENT=,...(plus whatever other variables your server uses typically) This will essentially make your server an open relay for that IP address. I expect this would work, but be careful with it. And don't forget to qmailctl cdb after changing the tcp.smtp file. -- -Eric 'shubes' On 08/24/2011 11:03 AM, Rob Wright wrote: Thanks for the reply. It's definitely not spamdyke, as we do not have this installed. When Inter7 did the setup for is SpamAssassin was installed. Here's what I've got in my log file, it's qmail-smtpd doing the rejection. @40004e5539281689fb3c tcpserver: ok 10664 mail.poncacity.net:70.254.229.**3:25 :70.254.229.27::53562 @40004e5539281aedc6a4 CHKUSER accepted rcpt: from rwright@callisto.poncacity.**net:unknown: remote callisto.poncacity.net:unknow**n:70.254 .229.27 rcptrwri...@poncacity.net : found existing recipient @40004e5539281db9851c qmail-smtpd: senders must have valid reverse DNS @40004e5539281dbe47dc tcpserver: end 10664 status 256 Part of the problem here is that I can't figure out what they've hacked to get qmail-smtpd to do the rejection. In my /var/qmail/control directory there is an 'rdns' file with a value of 1; rdns checking is either on or off. Any further ideas? I suppose this may be a lesson for the boss to install your own mail server but that bridge is already crossed. If there's no clear answer I'll just have to call Inter7 for support and let them deal with it. Rob On Wednesday 24 August 2011 11:49:44 Eric Shubert wrote: That would take care of things if the rejection is due to an RBL, but the rejection is stated as being due to lack of rDNS, which is different. The only thing I know of that rejects due to missing rDNS (using qmail) is spamdyke (a very good anti-spam tool btw). What specifically is causing the reject? You might post a sample from your smtp log if you can't tell. If it's spamdyke, then the spamdyke config has several ways of whitelisting. http://cr.yp.to/ucspi-tcp/**rblsmtpd.htmlhttp://cr.yp.to/ucspi-tcp/rblsmtpd.html Edit your tcp.smtp file and put the address in and set RBLSMTPD= and it will bypass the RBL check for that IP address. Afterwards, rebuild your tcp.smtp.cdb file (depending on how your built your toaster it'll be as easy as qmailctl cdb, or some other manual command) Hope that helps. On 11-08-24 9:14 AM, Rob Wrightdebianrob@poncacity.**netdebian...@poncacity.net wrote: Greetings. I hope this list is still intact and that I'm on-topic. I've searched for a solution and haven't been able to come up with anything. I've got a problem sprung up recently and can't quite figure out how to get around it. While I'm waiting for a bureaucracy to unsnaggle some DNS information on their side, is there anyway for us to whitelist a single mail server that's being rejected for not having rDNS? The mail server is known to us and I feel comfortable with taking this action. Hopefully this won't be a permanent solution but just a dirty hack while I wait for others to do their jobs. We've got a vanilla Inter7 installed vpopmail/qmail system and I have not been able to figure out of this is do-able or not. If it's possible how can I go about doing so? Thanks for any help or pointers. Rob Wright debian...@poncacity.net !DSPAM:4e55431f32715312255702!
[qmailadmin] Re: [SPAM] Whitelist rDNS for a single server
You're mistaken. It has absolutely nothing to do with sending, and everything to do with receiving. ;) On 08/24/2011 11:29 AM, William Olson wrote: I believe that is for sending mail only ... not receiving. If I am not mistaken. Bill http://www.goodcleanemail.com http://www.freebsdrocks.nethttp://www.centosrocks.net On Wed, Aug 24, 2011 at 2:28 PM, Eric Shubert e...@shubes.net mailto:e...@shubes.net wrote: Sorry, that's something I've never seen before. I'm guessing it's a patch to qmail-smtpd, but that's not worth much. As a short term work-around, you might try adding an entry to the tcp.smtp file for the server in question, with the RELAYCLIENT= variable set, eg: 70.254.229.27 tel:70.254.229.27:RELAYCLIENT=,...(plus whatever other variables your server uses typically) This will essentially make your server an open relay for that IP address. I expect this would work, but be careful with it. And don't forget to qmailctl cdb after changing the tcp.smtp file. -- -Eric 'shubes' On 08/24/2011 11:03 AM, Rob Wright wrote: Thanks for the reply. It's definitely not spamdyke, as we do not have this installed. When Inter7 did the setup for is SpamAssassin was installed. Here's what I've got in my log file, it's qmail-smtpd doing the rejection. @40004e5539281689fb3c tcpserver: ok 10664 mail.poncacity.net:70.254.229.__3:25 :70.254.229.27 tel:70.254.229.27::53562 @40004e5539281aedc6a4 CHKUSER accepted rcpt: from rwright@callisto.poncacity.__net:unknown: remote callisto.poncacity.net:unknow__n:70.254 .229.27 rcptrwri...@poncacity.net mailto:rwri...@poncacity.net : found existing recipient @40004e5539281db9851c qmail-smtpd: senders must have valid reverse DNS @40004e5539281dbe47dc tcpserver: end 10664 status 256 Part of the problem here is that I can't figure out what they've hacked to get qmail-smtpd to do the rejection. In my /var/qmail/control directory there is an 'rdns' file with a value of 1; rdns checking is either on or off. Any further ideas? I suppose this may be a lesson for the boss to install your own mail server but that bridge is already crossed. If there's no clear answer I'll just have to call Inter7 for support and let them deal with it. Rob On Wednesday 24 August 2011 11:49:44 Eric Shubert wrote: That would take care of things if the rejection is due to an RBL, but the rejection is stated as being due to lack of rDNS, which is different. The only thing I know of that rejects due to missing rDNS (using qmail) is spamdyke (a very good anti-spam tool btw). What specifically is causing the reject? You might post a sample from your smtp log if you can't tell. If it's spamdyke, then the spamdyke config has several ways of whitelisting. http://cr.yp.to/ucspi-tcp/__rblsmtpd.html http://cr.yp.to/ucspi-tcp/rblsmtpd.html Edit your tcp.smtp file and put the address in and set RBLSMTPD= and it will bypass the RBL check for that IP address. Afterwards, rebuild your tcp.smtp.cdb file (depending on how your built your toaster it'll be as easy as qmailctl cdb, or some other manual command) Hope that helps. On 11-08-24 9:14 AM, Rob Wrightdebianrob@poncacity.__net mailto:debian...@poncacity.net wrote: Greetings. I hope this list is still intact and that I'm on-topic. I've searched for a solution and haven't been able to come up with anything. I've got a problem sprung up recently and can't quite figure out how to get around it. While I'm waiting for a bureaucracy to unsnaggle some DNS information on their side, is there anyway for us to whitelist a single mail server that's being rejected for not having rDNS? The mail server is known to us and I feel comfortable with taking this action. Hopefully this won't be a permanent solution but just a dirty hack while I wait for others to do their jobs. We've got a vanilla Inter7 installed vpopmail/qmail system and I have
Re: [qmailadmin] Re: [SPAM] Whitelist rDNS for a single server
I'm certain it's a patch to qmail-smtpd, but I've never dealt with it either. Based on the replies I've received so far I looks like my next call is going to be to Inter7. I've tried putting the IP address into tcp.smtp but that's not done the trick, it's like the rDNS lookup is happening first and disregarding everything else. This is sure to be the place to look, and maybe if I can figure out what patch is being used I'll find some other tcp.smtp variables that might do the trick. I would have liked to have had Postfix installed but at the time it wasn't my call. It may be time to revisit that solution. This is exactly the kind of thing I've been afraid of. Thanks for the help everyone. I appreciate it. Rob On Wednesday 24 August 2011 13:28:19 Eric Shubert wrote: Sorry, that's something I've never seen before. I'm guessing it's a patch to qmail-smtpd, but that's not worth much. As a short term work-around, you might try adding an entry to the tcp.smtp file for the server in question, with the RELAYCLIENT= variable set, eg: 70.254.229.27:RELAYCLIENT=,...(plus whatever other variables your server uses typically) This will essentially make your server an open relay for that IP address. I expect this would work, but be careful with it. And don't forget to qmailctl cdb after changing the tcp.smtp file. Thanks for the reply. It's definitely not spamdyke, as we do not have this installed. When Inter7 did the setup for is SpamAssassin was installed. Here's what I've got in my log file, it's qmail-smtpd doing the rejection. @40004e5539281689fb3c tcpserver: ok 10664 mail.poncacity.net:70.254.229.3:25 :70.254.229.27::53562 @40004e5539281aedc6a4 CHKUSER accepted rcpt: from rwri...@callisto.poncacity.net:unknown: remote callisto.poncacity.net:unknown:70.254 .229.27 rcptrwri...@poncacity.net : found existing recipient @40004e5539281db9851c qmail-smtpd: senders must have valid reverse DNS @40004e5539281dbe47dc tcpserver: end 10664 status 256 Part of the problem here is that I can't figure out what they've hacked to get qmail-smtpd to do the rejection. In my /var/qmail/control directory there is an 'rdns' file with a value of 1; rdns checking is either on or off. Any further ideas? I suppose this may be a lesson for the boss to install your own mail server but that bridge is already crossed. If there's no clear answer I'll just have to call Inter7 for support and let them deal with it. Rob On Wednesday 24 August 2011 11:49:44 Eric Shubert wrote: That would take care of things if the rejection is due to an RBL, but the rejection is stated as being due to lack of rDNS, which is different. The only thing I know of that rejects due to missing rDNS (using qmail) is spamdyke (a very good anti-spam tool btw). What specifically is causing the reject? You might post a sample from your smtp log if you can't tell. If it's spamdyke, then the spamdyke config has several ways of whitelisting. http://cr.yp.to/ucspi-tcp/rblsmtpd.html Edit your tcp.smtp file and put the address in and set RBLSMTPD= and it will bypass the RBL check for that IP address. Afterwards, rebuild your tcp.smtp.cdb file (depending on how your built your toaster it'll be as easy as qmailctl cdb, or some other manual command) Hope that helps. On 11-08-24 9:14 AM, Rob Wrightdebian...@poncacity.net wrote: Greetings. I hope this list is still intact and that I'm on-topic. I've searched for a solution and haven't been able to come up with anything. I've got a problem sprung up recently and can't quite figure out how to get around it. While I'm waiting for a bureaucracy to unsnaggle some DNS information on their side, is there anyway for us to whitelist a single mail server that's being rejected for not having rDNS? The mail server is known to us and I feel comfortable with taking this action. Hopefully this won't be a permanent solution but just a dirty hack while I wait for others to do their jobs. We've got a vanilla Inter7 installed vpopmail/qmail system and I have not been able to figure out of this is do-able or not. If it's possible how can I go about doing so? Thanks for any help or pointers. Rob Wright debian...@poncacity.net !DSPAM:4e555d5832719528612898!
