Re: Adding route to Gateway server

On 02.12.20 18:04, Chu, Uy wrote: I currently have 2 postfix servers as our gateway servers hosting our domain. It is currently configure to receive internet email bound for our domain and then send it to our ProofPoint servers for hygiene scrubbing. This is all working great right now, but our

Re: Adding route to Gateway server

You can just add it to the transport file Ex add this to the transport file: 1...@1234test.com smtp:1.2.3.4 postmap the file. test by postmap -q "1...@1234test.com" /path/to/transport Taken from http://www.postfix.o

About messages bounced due name resolution issues using IPv6

Hi folks, I have a postfix 2.10 with the following parameters set: smtp_address_preference = any inet_protocols = all Sometimes users get this kind of errors: This is the mail system at host groupware.example.com. I'm sorry to have to inform you that your message could not be delivered to one

Re: About messages bounced due name resolution issues using IPv6

Sergio Belkin: > smtp_address_preference = any > inet_protocols = all ... > : Host or domain name not found. Name > service error for > name=another-example.com.mail.protection.outlook.com type=: Host > found but no data record of requested type > > > AFAIK if DNS over IPv6 fails it tries ove

Re: About messages bounced due name resolution issues using IPv6

El jue, 3 dic 2020 a las 16:37, Wietse Venema () escribió: > Sergio Belkin: > > smtp_address_preference = any > > inet_protocols = all > ... > > : Host or domain name not found. Name > > service error for > > name=another-example.com.mail.protection.outlook.com type=: Host > > found but no dat

Re: About messages bounced due name resolution issues using IPv6

On Thu, Dec 03, 2020 at 05:34:45PM -0300, Sergio Belkin wrote: > Dec 2 23:53:09 muteriver postfix/smtp[28063]: ED1CF1813C56F: to=< > apere...@another-example.com>, relay=none, delay=5.9, delays=0.17/0/5.8/0, > dsn=5.4.4, status=bounced (Host or domain name not found. Name service > error for name

Re: About messages bounced due name resolution issues using IPv6

> So, the complete error message would be : > > "I made DNS queries with type A and for the name > another-example.com.mail.protection.outlook.com. All queries > failed. The last query that failed had type . The last error > was "name exists but there is no record". >

Re: About messages bounced due name resolution issues using IPv6

Hi Sergio On Thu, Dec 03, 2020 at 05:34:45PM -0300, Sergio Belkin wrote: > Is quite interesting that I find the following in logs: > Dec 2 23:53:09 muteriver postfix/smtp[28063]: warning: no MX host for > another-example.com has a valid address record Well, more serious: another-example.com does

Re: About messages bounced due name resolution issues using IPv6

El jue, 3 dic 2020 a las 17:59, Wietse Venema () escribió: > > So, the complete error message would be : > > > > "I made DNS queries with type A and for the name > > another-example.com.mail.protection.outlook.com. All queries > > failed. The last query that failed had type .

Re: About messages bounced due name resolution issues using IPv6

Sergio Belkin: > > What comes to mind: > > > > 1) You ran the command as root, and the Postfix SMTP client does > > not run as root. Name resution fails when the necessary files are > > not accessible. > > > > 2) You ran the command outside the Postfix chroot jail, and the > > Postfix SMTP client r

Re: About messages bounced due name resolution issues using IPv6

El jue, 3 dic 2020 a las 18:18, Wietse Venema () escribió: > Sergio Belkin: > > > What comes to mind: > > > > > > 1) You ran the command as root, and the Postfix SMTP client does > > > not run as root. Name resution fails when the necessary files are > > > not accessible. > > > > > > 2) You ran th

Re: About messages bounced due name resolution issues using IPv6

El jue, 3 dic 2020 a las 18:04, Bastian Blank () escribió: > Hi Sergio > > On Thu, Dec 03, 2020 at 05:34:45PM -0300, Sergio Belkin wrote: > > Is quite interesting that I find the following in logs: > > Dec 2 23:53:09 muteriver postfix/smtp[28063]: warning: no MX host for > > another-example.com h

Re: About messages bounced due name resolution issues using IPv6

> On Dec 3, 2020, at 7:28 PM, Sergio Belkin wrote: > > Thanks Bastian, I had to obfuscate the domain name due to privacy issues :-/ > But I told to Wietse, that domain name has a MX record with an 'A' record > associated, but lacks of '' record. > What is weird for me is that it happens some

spamsources.fabel.dk

Testing my email domain reveals all the DMARC, SPF, etc, recs are correct and working. However, there is one blacklist that lists my domain/IP-address, and has done for some time. (so there's no time-out for good behavior then! I've had the IPaddr for some years, but who knows what was happeni

Re: spamsources.fabel.dk

On Fri, Dec 4, 2020 at 11:26 AM David Neil wrote: > When I follow the instructions and attempt a "Delist request for > spamsources.fabel.dk" they quickly assure me that they won't spam me, > but seem to demand a GMail account. So, one security issue (spam) is > traded for another (tracking). > > A

Re: About messages bounced due name resolution issues using IPv6

El jue, 3 dic 2020 a las 22:23, Viktor Dukhovni () escribió: > > On Dec 3, 2020, at 7:28 PM, Sergio Belkin wrote: > > > > Thanks Bastian, I had to obfuscate the domain name due to privacy issues > :-/ > > But I told to Wietse, that domain name has a MX record with an 'A' > record associated, but

Re: About messages bounced due name resolution issues using IPv6

El vie, 4 dic 2020 a las 1:42, Sergio Belkin () escribió: > > > El jue, 3 dic 2020 a las 22:23, Viktor Dukhovni (< > postfix-us...@dukhovni.org>) escribió: > >> > On Dec 3, 2020, at 7:28 PM, Sergio Belkin wrote: >> > >> > Thanks Bastian, I had to obfuscate the domain name due to privacy >> issues

Re: About messages bounced due name resolution issues using IPv6

On Fri, Dec 04, 2020 at 01:42:57AM -0300, Sergio Belkin wrote: > Thanks Viktor and Wietse, up to now the error didn't happen again. > Some information about my software that may be useful: > libc-2.17-260.el7_6.4.x86_64 > glibc-2.17-260.el7_6.4.i686 > dnsmasq-2.76-7.el7.x86_64 Is there a compelli