Control spam filtering and blocked senders
Every message sent to a Sheernox mailbox gets a spam score: the more it looks like spam, the higher the score. What happens next depends on three limits you can change for each mailbox. With the standard settings, likely spam goes to your Spam folder, and obvious spam is turned away before it reaches you.
Change the spam settings
Section titled “Change the spam settings”Open Emails in the control panel, select Manage from the mailbox’s menu and scroll to Spam settings.
| Setting | Messages scoring higher than it |
|---|---|
| Spambox marker 1 | Are delivered to the Spam folder instead of your inbox |
| Reject marker 2 | Are refused. The sender usually gets a message saying it was not delivered |
| Greylist marker 3 | Are delayed a few minutes. Real mail servers try again and get through; many spam senders never retry |
Move a slider towards Strict, or type a lower number, to catch more spam. Move it towards Permissive, or type a higher number, if real mail is being caught. Keep Spambox lower than Reject, so doubtful mail lands in your Spam folder for you to check rather than being refused.
Always allow or block a sender
Section titled “Always allow or block a sender”Under Allow/block list on the same page:
- Allow: enter an email address and select Allow. Mail from that address skips the spam filter, so it always reaches you.
- Block: enter an email address and select Block. Mail from that address is refused.
A real message went to Spam
Section titled “A real message went to Spam”-
Open the Spam folder in webmail or your mail app.
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Move the message to your inbox.
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If the sender’s mail keeps landing in Spam, add their address to the Allow list.
Ask the sender to check that their own domain has SPF, DKIM and DMARC set up. Mail from domains without them is much more likely to be treated as spam everywhere, not only at Sheernox.
Spam reached your inbox
Section titled “Spam reached your inbox”Delete it without replying, opening its attachments, or clicking “unsubscribe” in mail you never signed up for. If a lot gets through, move Spambox a little towards Strict, or Block a sender who keeps writing.
Empty the Spam folder regularly
Section titled “Empty the Spam folder regularly”Messages in Spam still count towards your mailbox size. Empty the folder from time to time after checking nothing real is in it.
Stop your own mail being marked as spam
Section titled “Stop your own mail being marked as spam”Make sure your domain’s SPF, DKIM and DMARC records are in place, and avoid sending bulk email from a normal mailbox. Use a mailing list service for newsletters.