Do you have any news for me on this? I’m disappointed not to have heard from your security team in the last week. We are still experiencing the same issues. This is, to say the least, infuriating. Can you help please? Andrew.
Thank you for reaching out to us, we are sorry for the delay in a update, Gareth is currently off and in his absence I am going to take ownership of this, I have reached out again to our Internet Security team and I will update you as soon as I hear anything back, as it is Friday it may be the early end of next Week when they come back to me, if you can use your Mobile Data where needed and we will work to get this resolved ASAP, apologies again for any inconvenience caused and for the delay in getting this resolved.
Based on the error message, the security team would appear to have initiated their own blacklist in order to protect their outbound servers.
IP addresses don't end up on blacklists for no reason, even the policy blacklists - which list IP addresses that are allocated via DHCP - have specific criteria.
My thoughts are that I've seen on this forum indications that spammers are sending mails using VM IP addresses - viewing the headers which show a blank X-Authenticated: header are strongly indicative of this.
I personally think that blacklisting is the wrong way to go. What I would do, were I running VM's servers, is remove IP authentication from the three legacy servers,
This is because currently if Iwere a spammer and I have access to a machine on a Virgin Media IP address, I could use the above servers to send without having to use a username and password. IP authentication has no place in todays world IMHO.
I would rather upset users and get them to update ther email settings in order to protect my servers, than continuing with a system of SMTP servers that is open to abuse.
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