@pjflip wrote:
What I can't find is any mention of outgoing mail spam filtering on the VM website, or even any reason why there should be any. I can understand incoming mail spam filtering, but outgoing?
I am not a VM employee but while you are waiting.................
In fact most responsible email providers make checks on outgoing email from their users. They do that to ensure that their (the email provider's) outgoing IP addresses do not get a bad reputation for sending spam and end up on a email block list (often referred to as a "blacklist")
If the IP address of one VM's outgoing mail servers gets on to such a blocklist it might result in VM emails being rejected completely by receiving email services and at the very least it would mean that VM emails would be much more likely to end up in the recipient's spam folder.
Those checks include limiting the number of emails that can be sent from an account as well as running outgoing mail through a spam filter.
Here's a link which outlines how Microsoft support those checks for organisations using MS Exchange Online Mailboxes.
https://docs.microsoft.com/en-us/microsoft-365/security/office-365-security/outbound-spam-controls?v...
VM almost certainly will have similar processes in place but are probably less willing to talk about them in any great detail. 😉
Coenoby
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