Using DKIM with distribution lists

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mrgreiner
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Joined: Sat Sep 13, 2014 2:56 am

Using DKIM with distribution lists

Postby mrgreiner » Fri Mar 06, 2015 8:40 am

Hi,

I've set DKIM in my Zimbra box following the instructions in http://wiki.zimbra.com/wiki/Configuring_for_DKIM_Signing, and it works fine.

After setting DMARC to receive reports, I found one serious problem with DKIM and distribution lists, which I use heavily. The problem is that when someone with an external email address (let’s say user@gmail.com) sends a message to one list, that message is redistributed to the recipients of the list with a ‘from:’ field identified as user@gmail.com. Since I’m not gmail, both DKIM and SPF fail (former because I can’t sign as gmail, latter as Google’s SPF record doesn’t set me as an authorized sender).  Is there any solution to this? Any setting I can do to fix this?

Thanks,

Roberto
PS: I’m using Zimbra 8.5.1 in an Ubuntu 12.4 box



phoenix
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Using DKIM with distribution lists

Postby phoenix » Sat May 23, 2015 10:24 am

I'm not really sure I understand what you're saying here. If your server receives an email from (let's say) a user with a gmail address and is destined for a distribution list the DKIM & SPF checks are performed (on the google records) on the email for validity prior to it's delivery, it is then sent to it's intended recipient. It makes no difference whether the recipient is a distribution list or a single user on your server.

Regards

Bill

Rspamd: A high performance spamassassin replacement

Per ardua ad astra
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jorgedlcruz
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Using DKIM with distribution lists

Postby jorgedlcruz » Sat May 23, 2015 5:03 pm

Hi Roberto,

Can you please share with us the complete error? And the mailbox.log error also if exists?



Best regards
Jorge de la Cruz https://jorgedelacruz.es
Systems Engineer at Veeam Software https://www.veeam.com/
djprojay
Posts: 1
Joined: Fri Nov 18, 2016 11:34 am

Re: Using DKIM with distribution lists

Postby djprojay » Fri Nov 18, 2016 11:37 am

Hi Roberto,

I am experiencing exactly the same issue and from a google search it seems there is no way to solve it.

Did you find any solution/workaround to replace the sender with the list address?

Thanks,
Giovanni
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msquadrat
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Re: Using DKIM with distribution lists

Postby msquadrat » Mon Nov 21, 2016 1:31 pm

The solution for this issue would be SRS which isn't implemented in Zimbra yet (cf. Bug 80897).

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