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BREAKING NEWS: PowerMTA 5.0 beta is out!!!!  Please contact support@port25.com for a license and download access.

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 91 
 on: February 21, 2018, 04:52:26 PM 
Started by hlesta - Last post by hlesta
Hello,

Thank you for the whole information.

We have a large amount of domains signed with our postfix dkim signature.

Is it possible use one .pem file to all domains?

Thank you!

Instructions on the setup of DKIM records and signing can be found in section 10.4 of the User's Guide, and you can use our DKIM Wizard (highly recommended) for the first time. The wizard can be found here:
http://www.port25.com/support/domainkeysdkim-wizard/

If you are using our wizard, you'll need to enter the TXT record into your DNS record for the public key as outlined in the wizard, and then save the private key to the PowerMTA server. 

Then, you'll need to add these two directives:
domain-key
dkim-sign yes


It will look like this in your config:
Code: [Select]
domain-key key1, yourdomain.com, C:\pmta\key1.somedomain.com.pem

<domain *>
  dkim-sign yes
</domain>

Make sure the path to the private key is valid, save config, and then reload. If DKIM doesn't work after ensuring the above is done, send a message to our auth-checker tool ( https://www.port25.com/authentication-checker ). It will reply with a report that includes reading a DKIM signature. If there is indeed a DKIM signature in the message, then the issue very likely lies outside of PowerMTA (likely DNS not yet or incorrectly set-up, wrong selector for it, etc.). Feel free to have the support team review the report by sending it to support@port25.com

*You may reuse the public/private key from Postfix into PMTA.

 92 
 on: February 21, 2018, 04:17:17 PM 
Started by hlesta - Last post by Jasdev Singh
Instructions on the setup of DKIM records and signing can be found in section 10.4 of the User's Guide, and you can use our DKIM Wizard (highly recommended) for the first time. The wizard can be found here:
http://www.port25.com/support/domainkeysdkim-wizard/

If you are using our wizard, you'll need to enter the TXT record into your DNS record for the public key as outlined in the wizard, and then save the private key to the PowerMTA server. 

Then, you'll need to add these two directives:
domain-key
dkim-sign yes


It will look like this in your config:
Code: [Select]
domain-key key1, yourdomain.com, C:\pmta\key1.somedomain.com.pem

<domain *>
  dkim-sign yes
</domain>

Make sure the path to the private key is valid, save config, and then reload. If DKIM doesn't work after ensuring the above is done, send a message to our auth-checker tool ( https://www.port25.com/authentication-checker ). It will reply with a report that includes reading a DKIM signature. If there is indeed a DKIM signature in the message, then the issue very likely lies outside of PowerMTA (likely DNS not yet or incorrectly set-up, wrong selector for it, etc.). Feel free to have the support team review the report by sending it to support@port25.com

*You may reuse the public/private key from Postfix into PMTA.

 93 
 on: February 21, 2018, 04:00:15 PM 
Started by hlesta - Last post by hlesta
Hello there!

I'm working in our DKIM signature this quarter and I need to understand the best way to get one DKIM signature and migrate to PMTA.

Do you have any experience migrating from Postfix to PMTA?

Thank you!

 94 
 on: January 27, 2018, 11:02:16 AM 
Started by hlesta - Last post by CaLViN
Dont use your default dns of your datacenter.
:)

 95 
 on: January 26, 2018, 02:25:12 PM 
Started by hlesta - Last post by hlesta
Sure, just add the following globally:

name-server 8.8.8.8
name-server 8.8.4.4

Once added, reload PowerMTA with "pmta reload"

Hello Admin, thank you!!!

We have applied and now we can reach the domain!! thank you!

 96 
 on: January 26, 2018, 01:18:49 PM 
Started by hlesta - Last post by Port25-Admin1
Sure, just add the following globally:

name-server 8.8.8.8
name-server 8.8.4.4

Once added, reload PowerMTA with "pmta reload"

 97 
 on: January 25, 2018, 12:17:20 PM 
Started by hlesta - Last post by hlesta
What is the DNS TTL for the domains in question?  The feature still uses the TTL to determine when to look up the domain again.  A really short TTL may cause issues as we are constantly having to look it up.

Hello Admin, thanks for your reply.

Do you reffer TTL of domain to send?

When I do a dig -t mx to domain.com, the DNS resolution given is
Code: [Select]
;; connection timed out; no servers could be reached
But if I change to dig @8.8.8.8 -t mx domain.com the DNS resolutions is ok.

So, I change the resolv.conf adding 8.8.8.8 as secundary DNS.

Do you recommend this? Do I to restart pmta? Do you have some additional advice ?

Thank you!

 98 
 on: January 24, 2018, 05:11:23 PM 
Started by hlesta - Last post by Port25-Admin1
What is the DNS TTL for the domains in question?  The feature still uses the TTL to determine when to look up the domain again.  A really short TTL may cause issues as we are constantly having to look it up.

 99 
 on: January 24, 2018, 02:56:30 PM 
Started by hlesta - Last post by hlesta
Hello there,

I'm using DNS-CACHE service with PMTA and I have the following configuration in pmta file.

Code: [Select]


<dns>   
precached-domains-file /etc/pmta/precached-domains
precached-max-domains 500     
precached-refresh-interval 5m
</dns>


Could you please tell me why we can't reach a lot of corporate emails? Someone have some experience with this DNS service? Some configuration or favorite DNS provider?

Thank you!

 100 
 on: January 05, 2018, 11:29:02 AM 
Started by hlesta - Last post by hlesta
Hi Rey,

Thanks, Have a nice day!

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