I need a solution
We have Symantec.Cloud on a number of sites and a potential issue has just been highlighted. A client of ours who does not use Symantec.Cloud (yet) has a valid SPF record setup and when he sends an e-mail to my personal Yahoo account it passes the SPF check with:
Received-SPF: pass (domain of cmauk.co.uk designates 209.85.217.181 as permitted sender)
However when he e-mails our work account it gets scanned by Symantec.Cloud and then passed on to our Office 365 setup and when it reached there the SPF fails:
Received-SPF: SoftFail (protection.outlook.com: domain of transitioning
cmauk.co.uk discourages use of 195.245.230.39 as permitted sender)
cmauk.co.uk discourages use of 195.245.230.39 as permitted sender)
Now as you can see the IP address has changed from 209.85.217.181 his Google IP to 195.245.230.39 a messagelabs IP and it fails the SPF check. It's not a big issue in our case as we can whitelist him but this must be happening to other clients all over the world where Messagelabs changes the IP and anything doing a SPF check behind it will cause a fail.
Is there anything that can be done to stop this change of IP address?
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