Contacted of list. Dave
From: mailop <mailop-boun...@mailop.org> on behalf of Nikolas Bauer via mailop <mailop@mailop.org> Date: Thursday, March 16, 2023 at 6:39 AM To: mailop@mailop.org <mailop@mailop.org> Subject: [mailop] Contact Mimecast.com Postmaster - Sending Problems Hello List We have had multiple problems sending emails from our mail.com domains to mimecast controlled mailboxes. Has anyone here had similar problems? Error message: SMTP error from remote server for RCPT TO command, host: au-smtp-inbound-2.mimecast.com (124.47.150.26) reason: 550 Administrative prohibition - envelope blocked - https://community.mimecast.com/docs/DOC-1369#550 [Xwi6G9SYM7adxsiZUWh3pw.au54] We would like to have the reason and a contact to the postmaster. On all common email address there is no response. Anyone got some direct contacts? Thanks Nikolas -- Nikolas Bauer Senior Mail Security Engineer Mail Security 1&1 Mail & Media GmbH | Brauerstraße 48 | 76135 Karlsruhe | Deutschland Phone: +49 721 91374-4714 E-Mail: nikolas.ba...@1und1.de<mailto:nikolas.ba...@1und1.de> | Web: http://www.1und1.de/ | http://www.gmx.net | http://www.web.de | http://www.mail.com | http://www.united-internet-media.de><http://www.1und1.de/%20|%20%20http:/www.gmx.net%20|%20http:/www.web.de%20|%20%20http:/www.mail.com%20%20|%20%20http:/www.united-internet-media.de%3e> Hauptsitz Montabaur, Amtsgericht Montabaur, HRB 7666 Geschäftsführer: Alexander Charles, Ralf Hartings, Thomas Ludwig, Jan Oetjen Member of United Internet Diese E-Mail kann vertrauliche und/oder gesetzlich geschützte Informationen enthalten. Wenn Sie nicht der bestimmungsgemäße Adressat sind oder diese E-Mail irrtümlich erhalten haben, unterrichten Sie bitte den Absender und vernichten Sie diese E-Mail. Anderen als dem bestimmungsgemäßen Adressaten ist untersagt, diese E-Mail zu speichern, weiterzuleiten oder ihren Inhalt auf welche Weise auch immer zu verwenden. This e-mail may contain confidential and/or privileged information. If you are not the intended recipient of this e-mail, you are hereby notified that saving, distribution or use of the content of this e-mail in any way is prohibited. If you have received this e-mail in error, please notify the sender and delete the e-mail.
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