DKIM/SPF Checker

DKIM/SPF Checker can help you check your DKIM and SPF settings through Gmail, Hotmail and Yahoo mail server. The DKIM/SPF Gmail, Hotmail and Yahoo checking results are for referrences only.

Please send the email with subject 'DKIM/SPF Check Request' to any of the following email address, and reload DKIM/SPF Checking Results after couple of minutes. Click the DKIM/SPF Results to see the detailed mail server Authentication-Results, the description of DKIK/SPF Authentication-Results from Gmail, Hotmail and Yahoo are not exact same.

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Recent DKIM/SPF Checking Results

Email	Checked On(EST)	Mail Server	DKIM Results	SPF Results
ad*@fa*.com	3/22/2023 1:26:05 AM	Hotmail	Fail spf=pass (sender IP is 211...237) smtp.mailfrom=fa*.com; dkim=none (message not signed) header.d=none;dmarc=bestguesspass action=none header.from=fa*.com;compauth=pass reason=109	Pass Pass (protection.outlook.com: domain of fa*.com designates 211...237 as permitted sender) receiver=protection.outlook.com; client-ip=211...237; helo=Exchange.fa*.com; pr=C
fe*@sw*.com	3/20/2023 2:57:59 AM	Yahoo	Fail atlas218.free.mail.bf1.yahoo.com; dkim=unknown; spf=pass smtp.mailfrom=sw*.com; dmarc=pass(p=QUARANTINE) header.from=sw*.com;	Pass pass (domain of sw*.com designates 171..**.207 as permitted sender)
fe*@sw*.com	3/20/2023 4:54:59 AM	Yahoo	Pass atlas105.free.mail.bf1.yahoo.com; dkim=pass header.i=@sw*.com header.s=sjf; spf=pass smtp.mailfrom=sw.com; dmarc=pass(p=QUARANTINE) header.from=sw**.com;	Pass pass (domain of sw*.com designates 171..**.207 as permitted sender)
fe*@sw*.com	3/20/2023 2:57:59 AM	Yahoo	Fail atlas218.free.mail.bf1.yahoo.com; dkim=unknown; spf=pass smtp.mailfrom=sw*.com; dmarc=pass(p=QUARANTINE) header.from=sw*.com;	Pass pass (domain of sw*.com designates 171..**.207 as permitted sender)
fe*@sw*.com	3/20/2023 2:57:48 AM	Yahoo	Fail atlas202.free.mail.bf1.yahoo.com; dkim=unknown; spf=pass smtp.mailfrom=sw*.com; dmarc=pass(p=QUARANTINE) header.from=sw*.com;	Pass pass (domain of sw*.com designates 171..**.207 as permitted sender)
zh*@sw*.com	3/20/2023 5:34:09 AM	Hotmail	Pass spf=pass (sender IP is 171...207) smtp.mailfrom=sw*.com; dkim=pass (signature was verified) header.d=sw.com;dmarc=pass action=none header.from=sw**.com;compauth=pass reason=100	Pass Pass (protection.outlook.com: domain of sw*.com designates 171...207 as permitted sender) receiver=protection.outlook.com; client-ip=171...207; helo=barracuda.sw*.com; pr=C
ya*@sw*.com	3/20/2023 5:35:25 AM	Yahoo	Pass atlas304.free.mail.ne1.yahoo.com; dkim=pass header.i=@sw*.com header.s=sjf; spf=pass smtp.mailfrom=sw.com; dmarc=pass(p=QUARANTINE) header.from=sw**.com;	Pass pass (domain of sw*.com designates 171..**.207 as permitted sender)
fe*@sw*.com	3/20/2023 2:57:59 AM	Yahoo	Fail atlas218.free.mail.bf1.yahoo.com; dkim=unknown; spf=pass smtp.mailfrom=sw*.com; dmarc=pass(p=QUARANTINE) header.from=sw*.com;	Pass pass (domain of sw*.com designates 171..**.207 as permitted sender)
li*@sw*.com	3/20/2023 3:06:31 AM	Yahoo	Fail atlas118.free.mail.ne1.yahoo.com; dkim=unknown; spf=pass smtp.mailfrom=sw*.com; dmarc=pass(p=QUARANTINE) header.from=sw*.com;	Pass pass (domain of sw*.com designates 171..**.207 as permitted sender)

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If you have any question or feedback, please email us to let us know.

DomainKeys Identified Mail (DKIM) is an email authentication method designed to detect email spoofing. It allows the receiver to check that an email claimed to have come from a specific domain was indeed authorized by the owner of that domain.

Sender Policy Framework (SPF) is an email validation protocol designed to detect and block email spoofing by providing a mechanism to allow receiving mail exchangers to verify that incoming mail from a domain comes from an IP Address authorized by that domain's administrators.

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Email	Checked On(EST)	Mail Server	DKIM Results	SPF Results
ad*@fa*.com	3/22/2023 1:26:05 AM	Hotmail	Fail spf=pass (sender IP is 211...237) smtp.mailfrom=fa*.com; dkim=none (message not signed) header.d=none;dmarc=bestguesspass action=none header.from=fa*.com;compauth=pass reason=109	Pass Pass (protection.outlook.com: domain of fa*.com designates 211...237 as permitted sender) receiver=protection.outlook.com; client-ip=211...237; helo=Exchange.fa*.com; pr=C
fe*@sw*.com	3/20/2023 2:57:59 AM	Yahoo	Fail atlas218.free.mail.bf1.yahoo.com; dkim=unknown; spf=pass smtp.mailfrom=sw*.com; dmarc=pass(p=QUARANTINE) header.from=sw*.com;	Pass pass (domain of sw*.com designates 171..**.207 as permitted sender)
fe*@sw*.com	3/20/2023 4:54:59 AM	Yahoo	Pass atlas105.free.mail.bf1.yahoo.com; dkim=pass header.i=@sw*.com header.s=sjf; spf=pass smtp.mailfrom=sw.com; dmarc=pass(p=QUARANTINE) header.from=sw**.com;	Pass pass (domain of sw*.com designates 171..**.207 as permitted sender)
fe*@sw*.com	3/20/2023 2:57:59 AM	Yahoo	Fail atlas218.free.mail.bf1.yahoo.com; dkim=unknown; spf=pass smtp.mailfrom=sw*.com; dmarc=pass(p=QUARANTINE) header.from=sw*.com;	Pass pass (domain of sw*.com designates 171..**.207 as permitted sender)
fe*@sw*.com	3/20/2023 2:57:48 AM	Yahoo	Fail atlas202.free.mail.bf1.yahoo.com; dkim=unknown; spf=pass smtp.mailfrom=sw*.com; dmarc=pass(p=QUARANTINE) header.from=sw*.com;	Pass pass (domain of sw*.com designates 171..**.207 as permitted sender)
zh*@sw*.com	3/20/2023 5:34:09 AM	Hotmail	Pass spf=pass (sender IP is 171...207) smtp.mailfrom=sw*.com; dkim=pass (signature was verified) header.d=sw.com;dmarc=pass action=none header.from=sw**.com;compauth=pass reason=100	Pass Pass (protection.outlook.com: domain of sw*.com designates 171...207 as permitted sender) receiver=protection.outlook.com; client-ip=171...207; helo=barracuda.sw*.com; pr=C
ya*@sw*.com	3/20/2023 5:35:25 AM	Yahoo	Pass atlas304.free.mail.ne1.yahoo.com; dkim=pass header.i=@sw*.com header.s=sjf; spf=pass smtp.mailfrom=sw.com; dmarc=pass(p=QUARANTINE) header.from=sw**.com;	Pass pass (domain of sw*.com designates 171..**.207 as permitted sender)
fe*@sw*.com	3/20/2023 2:57:59 AM	Yahoo	Fail atlas218.free.mail.bf1.yahoo.com; dkim=unknown; spf=pass smtp.mailfrom=sw*.com; dmarc=pass(p=QUARANTINE) header.from=sw*.com;	Pass pass (domain of sw*.com designates 171..**.207 as permitted sender)
li*@sw*.com	3/20/2023 3:06:31 AM	Yahoo	Fail atlas118.free.mail.ne1.yahoo.com; dkim=unknown; spf=pass smtp.mailfrom=sw*.com; dmarc=pass(p=QUARANTINE) header.from=sw*.com;	Pass pass (domain of sw*.com designates 171..**.207 as permitted sender)