Mail from contacts is marked as spam
Answer
While adding a sender to your Contacts will typically prevent their messages from being classified as spam, this rule does not apply when:
A) the message is not authenticated AND
B) the 'To:' and the 'From:' fields contain the same address.
This exception is in place because spammers will often insert the recipient address in the 'From:' field, assuming that this will automatically whitelist their spam message.
To check whether or not a message is authenticated:
- Select the conversation containing the message affected by this issue, and open the individual message.
- In the top-right corner of the message window, click show details.
- Find the 'mailed-by' field. If this field is blank then the message is not authenticated.
If a legitimate message is not authenticated, we suggest contacting the sender to authenticate their messages.
You can verify the 'To:' and the 'From:' fields of a message by viewing message headers:
- Select the conversation containing the message affected by this issue, and open the individual message.
- At the top-right corner of the message window, click the down arrow next to Reply, or select More options.
- Click Show original.
- The To and From addresses are in the lines beginning in 'To:' and 'From:'
We're currently working on methods to combat this spam tactic while also allowing legitimate messages with matching 'To:' and 'From:' fields.