Tag Archives: Error

Exim Mail-Server with Microsoft (Office) 365 and TLS errors

By | 2020-05-08

In the last days I got several calls, that I cannot receive emails from NetApp. After some debugging I found out, that my exim mailserver seems to refuse mails from NetApp which are received via some *.outlook.com domains: 2020-05-08 15:34:00 TLS error on connection from mail-db8eur05olkn2014.outbound.protection.outlook.com (EUR05-DB8-obe.outbound.protection.outlook.com) [] (recv): Error in the pull function. 2020-05-08… Read More »