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Sellerdeck hosting being blocked
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EdHarrison
Registered User
Join Date:
Jan 2009
Posts:
1014
#1
Sellerdeck hosting being blocked
09-Oct-2025, 07:51 AM
This morning I have had ALL emails being blocked from being delivered to Outlook Hotmail and MSN addresses, I am hosted with sellerdeck.
Anyone else?
https://www.harrisontelescopes.co.uk/
Ed Harrison - Menmuir Scotland
zgap111
Registered User
Join Date:
Oct 2006
Posts:
731
#2
09-Oct-2025, 08:10 AM
Try this:
https://mxtoolbox.com/emailhealth
Maybe this also:
https://mxtoolbox.com/blacklists.aspx
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EdHarrison
Registered User
Join Date:
Jan 2009
Posts:
1014
#3
09-Oct-2025, 08:15 AM
Thank you, beyond my understanding but seems to be problems with dmarc whatever that is!
https://www.harrisontelescopes.co.uk/
Ed Harrison - Menmuir Scotland
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EdHarrison
Registered User
Join Date:
Jan 2009
Posts:
1014
#4
09-Oct-2025, 12:38 PM
Unfortunately Microsoft blocks do not show on any lists, I have requested delist and added an SPF record and now just have to wait.
I have raised a support ticket, they advised they did have issues with some services that may take a few days to clear through.
I have suspended orders as a lot of customers use outlook or similar and I cannot have them placing orders without receiving confirmation emails.
I will keep testing and hope support are correct.
https://www.harrisontelescopes.co.uk/
Ed Harrison - Menmuir Scotland
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zgap111
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Join Date:
Oct 2006
Posts:
731
#5
Yesterday, 09:04 AM
ahh... yes, DNS records needs updating with spf1 and dmarc
If I rememeber it's to do with verification of emails - check if the sender is really from the sender.
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EdHarrison
Registered User
Join Date:
Jan 2009
Posts:
1014
#6
Yesterday, 09:24 AM
Done my best with spf dmarc and dkim but it does seem the block is with sellerdeck hosting looking at the errors returning....losing a lot of sales with orders suspended
Support are just saying it "should" clesr through in a few days.....
https://www.harrisontelescopes.co.uk/
Ed Harrison - Menmuir Scotland
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EdHarrison
Registered User
Join Date:
Jan 2009
Posts:
1014
#7
Today, 07:33 AM
Fixed...no idea how but happy
https://www.harrisontelescopes.co.uk/
Ed Harrison - Menmuir Scotland
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