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Many of these articles are for self-reference. Some are written unedited in the midst of a troubleshooting session. If a few of them appear a bit rough, that’s why.

Postfix – certificate verification failed

Postfix Logo

Another email server issue. Coincidentally, I noticed an error in the maillog when sending to my email address. Mar 2 15:13:40 mail postfix/smtp[28811]: certificate verification failed for[]:25: untrusted issuer /O=Digital Signature Trust Co./CN=DST Root CA X3 As it turned out, there was nothing wrong with the certificate or the issuer on the receiving end. […]

Configuring Outlook 2016 For Your IMAP Server

Configuring Outlook 2016 For Your IMAP Server

The following describes the correct settings for Outlook 2016 for your IMAP server. When firstly adding the account. Account Type: IMAP Incoming mail server: Outgoing mail server (SMTP): User Name: Full email address. Ensure that “Require logon using Secure Password Authentication (SPA)” is unchecked.  We have a secure mechanism in place but we […]