On 17/09/2024 16:19, Matt Vernhout wrote:
Random thought - Have you validated that their email authentication is
configured properly for the mail they are sending?
originprobate.com <http://originprobate.com>
"spf":
"record": "v=spf1 mx -all",
"valid": true,
"dns_lookups": 1,
"dns_void_lookups": 0,
"warnings": [],
"parsed": {
"pass":
"value": "cumaru.open-t.co.uk <http://cumaru.open-t.co.uk>",
"mechanism": "mx"
"dmarc": {
"record": null,
"valid": false,
"location": null,
"error": "A DMARC record does not exist for this domain or its base
domain"
~ Matt
Yes - thank you for checking. That has been double-checked and lines up
correctly. They can even send to Google / Gmail with no complaints
On Tue, Sep 17, 2024 at 7:21 AM Sebastian Arcus via mailop
<mailop@mailop.org <mailto:mailop@mailop.org>> wrote:
Hello list. In the last few days Virgin Media in UK
(@virginmedia.com <http://virginmedia.com>,
@ntlworld.com <http://ntlworld.com>) have started to bounce emails
from one of the domains I
manage. There isn't a lot to go on - as being a 550 message, there
isn't
any info about being blacklisted or similar. I am working on the
assumption that they have some sort of spam filtering in place, and
this
domain or its IP address might have been blacklisted somewhere. The
domain name is @originprobate.com <http://originprobate.com> and it
is a really low email volume
domain, with no marketing or similar activities. I checked at MX
Toolbox
both the domain name and the MX IP address (which is used by a few
other
domains I manage) and both come back clean. The other domains haven't
experienced any issues yet, so it seems the IP of the MX is clean.
There
hasn't been any recent change in settings at our end that I can
think of.
I've searched online but can't find if Virgin Media UK has some sort of
form to fill in or contact details to check if a domain is blacklisted
with them, or to submit an application to remove from such a blacklist,
if one exists.
Does anyone here have experience of dealing with Virgina Media UK or
some insight as to what their approach is? I would think it is a poor
idea to reply with "550 - Mailbox unavailable" when rejecting suspected
spam, instead of some appropriate message - but different
administrators
seem to have different views on how email should work. Such is life.
Any suggestions to move this further are much appreciated.
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