Relaying email is the perfect recipe to get blacklisted, the solution is fix the problem by hosting the email locally and have end user collect email from multiple hosts.

On 8/02/2017 12:46 p.m., Glen Eustace wrote:

Hi,

We have started receiving complaints from several of our customers for whom we are the MX for their domain. Some addresses in the domain are delivered locally, some are relayed to other mailboxes e.g. gmail and xtra.

It seems that there are folks who still believe that SPF is a good thing and have ‘-all’ on their record. Xtra it would appear is now enforcing the rejection on email we relay to them. We are placed in an awkward position. Our customer wants us to fix something that we are not really able to. The SPF policy belongs to the sender and Xtra are doing the rejection.

I have come across another add on technology for postfix called SRS for rewriting senders but that seems to be broken from all accounts as well.

Is anyone else having these sort of issues, is there something I should be doing in the ‘relay’ process that will prevent the rejections I’d love to hear.

Glen

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Glen Eustace,
GodZone Internet Services, a division of AGRE Enterprises Ltd.,
P.O. Box 8020, Palmerston North, New Zealand 4446
Ph +64 6 357 8168, Mob +64 27 542 4015

“Specialising in providing low-cost professional Internet Services since 1997"

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