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How to monitor an Exim queue on a WHM server using SNMP and PRTG

This technique uses an HTTPS connection and PRTG’s integer type to keep track of the queue size. You have to pick a “static” site on

Adding account in Outlook failing with bogus write-protected message

Outlook fails: We couldn’t create the Outlook data file. Make sure the disk you’re saving to isn’t full or write-protected and that the file isn’t

WHM/cPanel .EML files triggering “This message has been rejected because it has a potentially executable attachment”

WHM/cPanel might trigger a bounce such as the following: 2023-03-14 20:11:01 1pc96v-0007q4-15 cancelled by system filter: This message has been rejected because it has\na potentially

How to automatically reject an email message to a recipient in Postfix

Background To automatically reject an email message using Postfix, you can set up a smtpd_recipient_restrictions rule in the Postfix configuration file located at /etc/postfix/main.cf Why

How to deal with “The message store has reached its maximum size. To reduce the amount of data in this file, permanently delete some items that you no longer need.” looping

Background At times Outlook might start looping for power users. The messages received is: > The message store has reached its maximum size. To reduce

Bogus “Reverse DNS does not match SMTP Banner” using MX Toolbox on a WHM server

When testing Email Health using MX Toolbox, you might get 3 false positives: smtp server.example.com Reverse DNS does not match SMTP Banner More Info smtp

Outlook Mac error – The total attachment size exceeds the limit. Try removing one or more attachments before saving or sending.

On Outlook for Mac version 2016 connected with IMAP to a Kopano server, you might experience the following: The total attachment size exceeds the limit.

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