Unusual delay between Google SMTP servers - need advice or more examples

Hi everyone,

I recently noticed an unusual delay while tracking the delivery of an important email through Google’s SMTP servers. After reviewing the email headers, it seems that the email experienced a significant delay of over 24 hours between two Google servers.

Here are the relevant lines from the email header:

  • Initial Receipt by Google SMTP Server:

    X-Google-Smtp-Source: AGHT+IHFocXjfFqDfjPQpVz60xi52dTKuDj14owcG/U2MCUZrX/+Q2Z29Fge2Xe07W205yX2d1JfSd+G/wNkoTMJ9OQ=
    X-Received: by 2002:a05:6122:3bca:b0:4ef:65b6:f3b5 with SMTP id 71dfb90a1353d-503e053df13mr6342763e0c.10.1727081412602; Mon, 23 Sep 2024 01:50:12 -0700 (PDT)
    
  • Further Processing by mail-oi1-x22b.google.com:

    Received: by mail-oi1-x22b.google.com with SMTP id 5614622812f47-3e033e37bc9so1978951b6e.0 for <recipient@example.com>; Tue, 24 Sep 2024 07:04:34 -0700 (PDT)
    

As you can see, there is a gap of over 24 hours between these two steps. Has anyone encountered a similar issue? It is happening very often to me: two-way communication to-from with google-based company as well as two-way communication to-from with private google users. Is this normal, or could there be something wrong with the Google server handling with regards to e.email parties?

Any advice or insight into what might be causing this delay would be greatly appreciated. Also, if there are any suggestions on how to prevent such delays in the future, I’d love to hear them.

Thanks in advance for your help!

Best regards,
Milan

This is the whole anonymised full email header:

Return-Path: <sender.name@gmail.com>
Delivered-To: cc.name@e.email
Received: from mail3.ecloud.global
	by mail3.ecloud.global with LMTP
	id qJNPKfPG8manNA8AOqU8ng
	(envelope-from <sender.name@gmail.com>)
	for <cc.name@e.email>; Tue, 24 Sep 2024 14:04:35 +0000
Received: from mail-oi1-x22b.google.com (mail-oi1-x22b.google.com [IPv6:2607:f8b0:4864:20::22b])
	(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)
	 key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256)
	(No client certificate requested)
	by mail3.ecloud.global (Postfix) with ESMTPS id 2B83F885790
	for <cc.name@e.email>; Tue, 24 Sep 2024 14:04:35 +0000 (UTC)
Authentication-Results: mail3.ecloud.global;
	dkim=pass header.d=gmail.com header.s=google header.b=y9nm7Uxi;
	dmarc=pass (policy=none) header.from=gmail.com;
	spf=pass (mail3.ecloud.global: domain of sender.name@gmail.com designates 2607:f8b0:4864:20::22b as permitted sender) smtp.mailfrom=sender.name@gmail.com
Received: by mail-oi1-x22b.google.com with SMTP id 5614622812f47-3e033e37bc9so1978951b6e.0
        for <cc.name@e.email>; Tue, 24 Sep 2024 07:04:34 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=google; t=1727186673; x=1727791473; darn=e.email;
        h=cc:to:subject:message-id:date:from:mime-version:from:to:cc:subject
         :date:message-id:reply-to;
        bh=EAJr5Tc5kkE5wI2pExm7C6QoBat/IaukhDsvNg8CH9k=;
        b=y9nm7UxipqTYNxxBR7TlkuqNJDc3egXxfa7se34RRP+K25RMDgVMMJ4We0+OhydB12
         CLqGc7V8lUAq0uXlBtNVDynqHjS+BWEJ0JfyqSrRfeDUFVa/c9Y/P72uotwJTk3ezadw
         ghPZs7zkilTKKN8SSz6V+riKBJgIpDm6M9NjU=
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20230601; t=1727186673; x=1727791473;
        h=cc:to:subject:message-id:date:from:mime-version:x-gm-message-state
         :from:to:cc:subject:date:message-id:reply-to;
        bh=EAJr5Tc5kkE5wI2pExm7C6QoBat/IaukhDsvNg8CH9k=;
        b=i76UztaEuaMIwvQg6UxnSg9uW2U2XVfb2wP/TEBZ1TN3vqunWdjoXHW7paU1Y4IpGg
         ARXabS+RoRc0QMfynTRGYLzlxLEBCVaPhgrEOp5790Q+Y3WN1JvNbPCZY+/Wsz9JLR4L
         q0gcTdkjbkFu0aB8U6MYjRuQaoaBULGrtI1sYeV6eG1la6tEDScTXDMsuHBFx03zrmPy
         VmvVkHjhiYqcM67FsmKA9LpdXmqFlaJx6uIMLuTubp8EJpnt3cJDP+4cjoi5kZnVsYqR
         /X1l5C8IsAXuvdYGPowvZfwvAPj9YAxAbmuaeDZ8Upzs/i8TV2HILzMWufUWsicxlV+E
         SmzA==
X-Gm-Message-State: AOJu0Yw0jhCFzRxRK43NYsTn8mGqkLUvgTZTum4Q167MV+VaFpK0Qcvi
	eE9Qo4fLJiH9Lxjdu9myNeCSMDebMiUaRlTjM/KJEyg21PKqBcwZuomfnLKYt8MDZyWMFRxveBz
	YBXUz09M30UGO4MSqASEAAiJ91cOPb8BWfBnu1SlJTVSWkJJj4NNVqTCDyi09LOdrMLL9RGLloZ
	YSrxTDX1B1BAemelfXhcD2GYLaxJY8fg==
X-Google-Smtp-Source: AGHT+IHFocXjfFqDfjPQpVz60xi52dTKuDj14owcG/U2MCUZrX/+Q2Z29Fge2Xe07W205yX2d1JfSd+G/wNkoTMJ9OQ=
X-Received: by 2002:a05:6122:3bca:b0:4ef:65b6:f3b5 with SMTP id
 71dfb90a1353d-503e053df13mr6342763e0c.10.1727081412602; Mon, 23 Sep 2024
 01:50:12 -0700 (PDT)
MIME-Version: 1.0
From: User Name <sender.name@gmail.com>
Date: Mon, 23 Sep 2024 10:49:36 +0200
Message-ID: <CAKVbGxVCqRBB3OnvZKAcr_g4XeyHaQU25xm9DKs3uDhRXspk4w@mail.gmail.com>
Subject: =?UTF-8?Q?private?=
To: "to.name@gmail.com" <to.name@gmail.com>
Cc: cc.name@e.email
Content-Type: multipart/alternative; boundary="00000000000018c4790622c57a50"
X-Spamd-Result: default: False [7.09 / 15.00];
	BAYES_SPAM(5.10)[100.00%];
	DATE_IN_PAST(1.00)[29];
	SUSPICIOUS_URL_IN_SUSPICIOUS_MESSAGE(1.00)[];
	BAD_REP_POLICIES(0.10)[];
	MIME_GOOD(-0.10)[multipart/alternative,text/plain];
	MX_GOOD(-0.01)[];
	TO_DN_EQ_ADDR_SOME(0.00)[];
	RCVD_TLS_LAST(0.00)[];
	MIME_TRACE(0.00)[0:+,1:+,2:~];
	FUZZY_BLOCKED(0.00)[rspamd.com];
	R_DKIM_ALLOW(0.00)[gmail.com:s=google];
	FREEMAIL_TO(0.00)[gmail.com];
	ARC_NA(0.00)[];
	GREYLIST(0.00)[pass,body];
	RCPT_COUNT_TWO(0.00)[2];
	DMARC_POLICY_ALLOW(0.00)[gmail.com,none];
	DKIM_TRACE(0.00)[gmail.com:+];
	PREVIOUSLY_DELIVERED(0.00)[cc.name@e.email];
	TO_MATCH_ENVRCPT_SOME(0.00)[];
	FROM_EQ_ENVFROM(0.00)[];
	RCVD_IN_DNSWL_NONE(0.00)[2607:f8b0:4864:20::22b:from];
	REDIRECTOR_URL(0.00)[twitter.com];
	ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US];
	R_SPF_ALLOW(0.00)[+ip6:2607:f8b0:4000::/36];
	MISSING_XM_UA(0.00)[];
	RCVD_COUNT_ONE(0.00)[1];
	FROM_HAS_DN(0.00)[]
X-Spam-Level: *******
X-Rspamd-Action: add header
X-Spam-Flag: YES
X-Rspamd-Server: mail3
X-Rspamd-Queue-Id: 2B83F885790
X-Spam-Status: Yes, score=7.09
X-Spam: Yes

sender.name, cc.name, to.name are anonymized variants of the original.

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