Guest Paul Alexander Posted August 15, 2018 Share Posted August 15, 2018 Morning All of our outbound emails are failing to send. I DON'T think it's a Hornbill problem, however I thought I'd ask anyway...is anyone else having this problem (we use O365 for email)? Link to comment Share on other sites More sharing options...
Victor Posted August 15, 2018 Share Posted August 15, 2018 @Paul Alexander - do you have the SPF record configured correctly on your DNS? https://wiki.hornbill.com/index.php/Outbound_Mail_Routing Link to comment Share on other sites More sharing options...
Guest Paul Alexander Posted August 15, 2018 Share Posted August 15, 2018 Hi @Victor Yes, that's been checked and there is an include_spf.hornbill.com line in our record. It looks like the problem started yesterday morning around 11am. Link to comment Share on other sites More sharing options...
Victor Posted August 15, 2018 Share Posted August 15, 2018 Can you PM me the SPF record please? Link to comment Share on other sites More sharing options...
Gerry Posted August 15, 2018 Share Posted August 15, 2018 @Victor The SPF record is in the DNS records that are public facing, you can just look it up. https://mxtoolbox.com/SuperTool.aspx?action=spf%3avinci.plc.uk&run=toolpage# Gerry Link to comment Share on other sites More sharing options...
Gerry Posted August 15, 2018 Share Posted August 15, 2018 @Paul Alexander Have your mail folks look at the SPF report on mxtoolbox above, there are some warnings in there regarding the number of includes in your SPF records. Gerry Link to comment Share on other sites More sharing options...
Guest Paul Alexander Posted August 15, 2018 Share Posted August 15, 2018 Thanks @Gerry I've passed it over to the 'clever' people to sort out. Thanks for your help.... Link to comment Share on other sites More sharing options...
Gerry Posted August 15, 2018 Share Posted August 15, 2018 @Paul Alexander one of our clever people internally also pointed out there are multiple SPF records which are not something we support because it is not compliant with the SPF standard, this is showing up as an error or the mxtoolbox report also, multiple SPF records is not allowed according to the SPF rules. If your mail was working previously and now it is not I expect this has recently changed. Gerry Link to comment Share on other sites More sharing options...
Guest Paul Alexander Posted August 15, 2018 Share Posted August 15, 2018 @Gerry It turns out that our DNS domain name provider was taken over by someone else, and this has caused the problem (and is why there are 2 SPF records showing...) It's being sorted out now though, so, once again, thanks for your help. I KNEW it wasn't a Hornbill problem Link to comment Share on other sites More sharing options...
Gerry Posted August 15, 2018 Share Posted August 15, 2018 @Paul Alexander Thanks for the update, glad it is all sorted. Yes, email tends to be one of those things that are difficult to track problems, it's always easy to look at the thing that's not working as the problem. This is why our logging for outbound email delivery is done this way, we implement all of the protocols to the greatest possible extent ourselves so we can so that we can be very precise about any errors we encounter, email delivery is one of those areas we have focused on which really helps when problems do arise. Gerry Link to comment Share on other sites More sharing options...
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