Good afternoon Sophos community, I see myself in need of seeking help by this means for the problem that has been presented to me. I have configured mailflow in 4 domains, each one with a different substate, I have carried out the following tests:
1. Incoming emails do not present any problem
2. Emails from mydomain.com to personal Gmail accounts and corporate accounts arrive in the inbox without problems, no error is detected in the email headers
3. Outgoing emails from mydomain.com to a personal Hotmail account arrive in the SPAM tray.
In the headers of the mail that arrived at spam I detected the following errors:
ARC-Authentication-Results i=2; mx.microsoft.com 1; spf=pass (sender ip is 220.127.116.11) smtp.rcpttodomain=hotmail.com smtp.mailfrom=talma.com.co; dmarc=bestguesspass action=none header.from=talma.com.co; dkim=pass (signature was verified) header.d=lasacol.onmicrosoft.com; dkim=pass (signature was verified) header.d=lasacol.onmicrosoft.com; dkim=pass (signature was verified) header.d=mail-dkim-us-west-2.prod.hydra.sophos.com; arc=fail (48)
ARC-Seal i=2; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=fail; b=mS+fP14RAUfFmoKWRg73FIrnp5OA/GEHet6ZLNNTI0AiYIPISowjnhk89b9jWfso/coA+kFyIISb5zwxJDQ37CSSUTHyIRMHzB3FwGGO0zOmUwL/dFd51OHpmg3ASuiuHC3OWsV6DlubGajWb P2jphcbxWiYAmpsZPcNZIRbUv4eane4qe35yeT7AsPwsMDSog+z6782RbTp+91l6MNoZsqrjI6EEmBQ10xeU8zCdEMZpVS9c6YBYpnKcNVnf2GI1ixUI8OCCSQK1SxeQ2UHlrw3pDl Itdpyfy+jSI4rZMWCf6uIZFGQ4hN5wGUBjFexfNCBCB51MgHlW/YOokFmEQ==
Will this have something to do with it?
In another domain with mailflow it happens to me that outgoing emails to gmail and hotmail arrive at SPAM.
I hope I can get help. Thank you
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