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jay.taylor

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Hey all,

I've got some questions about the email list feature. A client is trying to setup this feature (Sorry I've never setup a list on Kerio Connect) and they are having some issues.

The company with the mail server (xyz.com) has a list setup with several people on it. When someone on the list sends the list an email using (say aol.com) in their email address, all the other members in the list with aol.com in their address bounce. I can understand, I think that aol.com is upset that email is coming back to their domain from someone claiming to be from their domain but from our server at xyz.com. Is there a way to fix this? Does dkim and spf and dmarc help with this? I don't mean to just pick on aol.com here as it happens with other domains as well.

It looks like I need to find a way to send emails to a domain claiming that my email is from that domain. I hope I'm explaining this right.

I've tried the setting "Hide senders address..." and that prevents the bounce messages but now we loose the author of the email message and if the person doesn't have a signature, it's impossible to tell who it's from.

I'm sorry if I've missed the write up on this issue, my search foo probably isn't that good. I've never had to deal with this issue before.

Thanks so much for your help.

Jay
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freakinvibe

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This is standard behaviour if the provider (AOL) checks for spoofed From addresses.

AOL is checking the From address and sees that it is aol.com. It knows that it only has a certain number of servers that are allowed to send messages for aol.com. Your Kerio server is not one of them, so it does not allow the message.

There is no trick around it other than "Hiding the senders address".

There are providers that are more clever than AOL and they detect the sender as

mailinglist-owner@mailinglistdomain.com on behalf of me<_at_>gmail.com

and accept the message. Like this, it shows that the message came through the mailing list, but the original sender is the gmail address.

But not all providers are that clever. I don't have an AOL account, but do they have whitelisting capabilities where a user could allow certain senders?

Dexion AG - The Blackberry Specialists in Switzerland
http://www.dexionag.ch
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jay.taylor

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Thanks for the insight. I hadn't thought of trying to solve the problem from the "other end". I'll ask all the recipients to "white list" the email list address.

I'll let you know how this works out. I just wish that there were something I could do on my end to mitigate the issue.

Should I perhaps have them look at alternative email list processing software?

Thanks,
Jay
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