From: "Massimo S." Received: from [192.168.100.201] (HELO mail.2rosenthals.com) by 2rosenthals.com (CommuniGate Pro SMTP 5.4.10) with ESMTP id 12900063 for ecs-isp@2rosenthals.com; Wed, 23 Apr 2025 13:28:39 -0400 Received: from secmgr-va.2rosenthals.com ([50.73.8.217]:59557 helo=mail2.2rosenthals.com) by mail.2rosenthals.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.97.1) (envelope-from ) id 1u7dtl-000000006Ro-0OEQ for ecs-isp@2rosenthals.com; Wed, 23 Apr 2025 13:28:37 -0400 Received: from mail2.quasarbbs.net ([80.86.52.115]:10079) by mail2.2rosenthals.com with esmtp (Exim 4.97.1) (envelope-from ) id 1u7dtg-000000002MQ-24No for ecs-isp@2rosenthals.com; Wed, 23 Apr 2025 13:28:34 -0400 X-SASI-Hits: BODYTEXTP_SIZE_3000_LESS 0.000000, BODY_SIZE_1400_1499 0.000000, BODY_SIZE_2000_LESS 0.000000, BODY_SIZE_5000_LESS 0.000000, BODY_SIZE_7000_LESS 0.000000, CTE_7BIT 0.000000, DKIM_ALIGNS 0.000000, DKIM_SIGNATURE 0.000000, ECARD_KNOWN_DOMAINS 0.000000, HTML_00_01 0.050000, HTML_00_10 0.050000, IN_REP_TO 0.000000, LEGITIMATE_SIGNS 0.000000, MSGID_SAMEAS_FROM_HEX_844412 0.100000, MSG_THREAD 0.000000, NO_CTA_URI_FOUND 0.000000, NO_URI_HTTPS 0.000000, REFERENCES 0.000000, REPLYTO_SAMEAS_FROM 0.000000, SENDER_NO_AUTH 0.000000, SUSP_DH_NEG 0.000000, TO_IN_SUBJECT 0.500000, USER_AGENT 0.000000, __ANY_URI 0.000000, __BANNER_TRUSTED_SENDER 0.000000, __BODY_NO_MAILTO 0.000000, __BOUNCE_CHALLENGE_SUBJ 0.000000, __BOUNCE_NDR_SUBJ_EXEMPT 0.000000, __COURIER_PHRASE 0.000000, __CT 0.000000, __CTE 0.000000, __CT_TEXT_PLAIN 0.000000, __DC_PHRASE 0.000000, __DKIM_ALIGNS_1 0.000000, __DKIM_ALIGNS_2 0.000000, __DQ_NEG_DOMAIN 0.000000, __DQ_NEG_HEUR 0.000000, __DQ_NEG_IP 0.000000, __FORWARDED_MSG 0.000000, __FROM_DOMAIN_NOT_IN_BODY 0.000000, __FROM_NAME_NOT_IN_ADDR 0.000000, __FROM_NAME_NOT_IN_BODY 0.000000, __FUR_HEADER 0.000000, __HAS_FROM 0.000000, __HAS_MSGID 0.000000, __HAS_REFERENCES 0.000000, __HAS_REPLYTO 0.000000, __HEADER_ORDER_FROM 0.000000, __INVOICE_MULTILINGUAL 0.000000, __IN_REP_TO 0.000000, __MAIL_CHAIN 0.000000, __MIME_BOUND_CHARSET 0.000000, __MIME_TEXT_ONLY 0.000000, __MIME_TEXT_P 0.000000, __MIME_TEXT_P1 0.000000, __MIME_VERSION 0.000000, __MOZILLA_USER_AGENT 0.000000, __MSGID_HEX_844412 0.000000, __NO_HTML_TAG_RAW 0.000000, __PASSWORD_IN_BODY 0.000000, __PHISH_SPEAR_SUBJ_SUBJECT 0.000000, __REFERENCES 0.000000, __REPLYTO_SAMEAS_FROM_ACC 0.000000, __REPLYTO_SAMEAS_FROM_ADDY 0.000000, __REPLYTO_SAMEAS_FROM_DOMAIN 0.000000, __SANE_MSGID 0.000000, __SCAN_D_NEG 0.000000, __SCAN_D_NEG2 0.000000, __SCAN_D_NEG_HEUR 0.000000, __SCAN_D_NEG_HEUR2 0.000000, __SHIPPING_BAD_ADDRESS 0.000000, __SUBJ_ALPHA_END 0.000000, __SUBJ_ALPHA_NEGATE 0.000000, __SUBJ_REPLY 0.000000, __TO_IN_SUBJECT 0.000000, __TO_MALFORMED_2 0.000000, __TO_NAME 0.000000, __TO_NAME_DIFF_FROM_ACC 0.000000, __TO_REAL_NAMES 0.000000, __URI_NO_MAILTO 0.000000, __URI_NO_WWW 0.000000, __URI_NS 0.000000, __USER_AGENT 0.000000 X-SASI-Probability: 10% X-SASI-RCODE: 200 X-SASI-Version: Antispam-Engine: 5.1.4, AntispamData: 2025.4.23.165728 X-SASI-Hits: BODYTEXTP_SIZE_3000_LESS 0.000000, BODY_SIZE_1400_1499 0.000000, BODY_SIZE_2000_LESS 0.000000, BODY_SIZE_5000_LESS 0.000000, BODY_SIZE_7000_LESS 0.000000, CTE_7BIT 0.000000, DKIM_ALIGNS 0.000000, DKIM_SIGNATURE 0.000000, ECARD_KNOWN_DOMAINS 0.000000, HTML_00_01 0.050000, HTML_00_10 0.050000, IN_REP_TO 0.000000, LEGITIMATE_SIGNS 0.000000, MSGID_SAMEAS_FROM_HEX_844412 0.100000, MSG_THREAD 0.000000, NO_CTA_URI_FOUND 0.000000, NO_URI_HTTPS 0.000000, REFERENCES 0.000000, REPLYTO_SAMEAS_FROM 0.000000, SUSP_DH_NEG 0.000000, TO_IN_SUBJECT 0.500000, USER_AGENT 0.000000, __ANY_URI 0.000000, __AUTH_RES_PASS 0.000000, __BANNER_TRUSTED_SENDER 0.000000, __BODY_NO_MAILTO 0.000000, __BOUNCE_CHALLENGE_SUBJ 0.000000, __BOUNCE_NDR_SUBJ_EXEMPT 0.000000, __COURIER_PHRASE 0.000000, __CT 0.000000, __CTE 0.000000, __CT_TEXT_PLAIN 0.000000, __DC_PHRASE 0.000000, __DKIM_ALIGNS_1 0.000000, __DKIM_ALIGNS_2 0.000000, __DQ_NEG_DOMAIN 0.000000, __DQ_NEG_HEUR 0.000000, __DQ_NEG_IP 0.000000, __FORWARDED_MSG 0.000000, __FROM_DOMAIN_NOT_IN_BODY 0.000000, __FROM_NAME_NOT_IN_ADDR 0.000000, __FROM_NAME_NOT_IN_BODY 0.000000, __FUR_HEADER 0.000000, __HAS_FROM 0.000000, __HAS_MSGID 0.000000, __HAS_REFERENCES 0.000000, __HAS_REPLYTO 0.000000, __HEADER_ORDER_FROM 0.000000, __INVOICE_MULTILINGUAL 0.000000, __IN_REP_TO 0.000000, __MAIL_CHAIN 0.000000, __MIME_BOUND_CHARSET 0.000000, __MIME_TEXT_ONLY 0.000000, __MIME_TEXT_P 0.000000, __MIME_TEXT_P1 0.000000, __MIME_VERSION 0.000000, __MOZILLA_USER_AGENT 0.000000, __MSGID_HEX_844412 0.000000, __NO_HTML_TAG_RAW 0.000000, __PASSWORD_IN_BODY 0.000000, __PHISH_SPEAR_SUBJ_SUBJECT 0.000000, __REFERENCES 0.000000, __REPLYTO_SAMEAS_FROM_ACC 0.000000, __REPLYTO_SAMEAS_FROM_ADDY 0.000000, __REPLYTO_SAMEAS_FROM_DOMAIN 0.000000, __SANE_MSGID 0.000000, __SCAN_D_NEG 0.000000, __SCAN_D_NEG2 0.000000, __SCAN_D_NEG_HEUR 0.000000, __SCAN_D_NEG_HEUR2 0.000000, __SHIPPING_BAD_ADDRESS 0.000000, __SUBJ_ALPHA_END 0.000000, __SUBJ_ALPHA_NEGATE 0.000000, __SUBJ_REPLY 0.000000, __TO_IN_SUBJECT 0.000000, __TO_MALFORMED_2 0.000000, __TO_NAME 0.000000, __TO_NAME_DIFF_FROM_ACC 0.000000, __TO_REAL_NAMES 0.000000, __URI_NO_MAILTO 0.000000, __URI_NO_WWW 0.000000, __URI_NS 0.000000, __USER_AGENT 0.000000 X-SASI-Probability: 10% X-SASI-RCODE: 200 X-SASI-Version: Antispam-Engine: 5.1.4, AntispamData: 2025.4.23.165728 DKIM-Signature: v=1; q=dns/txt; a=rsa-sha256; c=relaxed/relaxed; s=default; d=ecomstation.it; bh=dqLhQ918IIrUUfFnO0yzbJVtGuREPUZPSlqI/0FhUpY=; h=Return-Path:From:To:Subject:Date:Message-ID; b=AVUFBev5MgJmIAW8wEPI8tSBLOGcu1iyFWAjv+uGgOgS6BHqsJsdMyogYuEWhyaacrqYM L+MMdhWvhAkgyUqd8Hf9q8VRhy+RrN4B+xn8pRqt8MU3P2hPniBGDANXNY8okyVd4WsSGfO A5VkBmFNZqEbkeqOgQV+ogVNu8DkB1ULdisPsqxiZ3hLeEzIDlXA4UyGEisp46P5tjwfdr0 bIr4zcKCUYzHioePrHh8zdmNkftqr8/RXSRxfOJ8CfEBCbZ/XMYJGzEbD/xYf4HwWLMhk/W qibyoFmyrcvrdGYNixIv+s6Azm0u0M8vIXQtRSZP4X6bt6LG8Gnqc9YekkNQ== Received: from [192.168.10.199] (dtp [192.168.10.199]) by srv2 (Weasel v3.03) for ; Wed, 23 Apr 2025 19:28:31 -0000 Reply-To: ml@ecomstation.it Subject: Re: [eCS-ISP] Trouble getting mail delivered to Office365 (outlook.com), ProofPoint, and Barracuda protected domains To: eCS ISP Mailing List References: Organization: Massimo S. Message-ID: <2fd1ab6b-d326-34be-8226-74b12e622cfc@ecomstation.it> Date: Wed, 23 Apr 2025 19:28:26 +0200 User-Agent: Mozilla/5.0 (OS/2; U; Warp 4.5; it-IT; rv:1.7.13) Gecko/20060424 Thunderbird/1.0.8 Mnenhy/0.7.4.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: it Content-Transfer-Encoding: 7bit Il 22/04/2025 22:50, Lewis G Rosenthal ha scritto: > Hi, all... > > For the past few days, I've been dealing with an issue of mail from 2rosenthals.com apparenly getting > blackholed by certain providers. We do not receive any kind of DSN. From all accounts, the email is going out > for delivery and that's that. However, on the other end, recipients aren't seeing the messages, nor are they > getting any kind of spam notification or other warning that a message could not be delivered. > > Affected domains seem to be hosted with a handful of providers, Office365 among them, which uses outlook.com. > Naturally, I've checked both the outlook.com and live.com internal lists, and both show that neither of our > IPs is listed. > > Other MXs which seem to be behaving similarly are: > > gpphosted.com (ProofPoint) > barracudanetworks.com > > Multiple multiple-RBL checks come up clean for both IPs and our domain. SPF, DKIM, and DMARC configurations > all look fine (read: pass specific checks by various third parties, including mxtoolbox.com). > > Mail flows without incident to gmail.com and yahoo.com. > > Is anyone else seeing anything like this? > > TIA Hi Lewis, yes, since i use Weasel as MTA and some european domain is start to refusing SMTP plain, they only accept STARTTLS. Anyway Peter plans to add TLS in the next months. Here i had to use external SMPTs as intermediary SMTP to keep on receiving emails from this domain. massimo