Postfix has an option for smtpd_recipient_restrictions called check_client_access. According to the Postfix manual, this: You can use it to block specific domains, as
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Author: Phil Lavin
I’m an Engineer, working for Vonage (an Ericsson company). I write about stuff that interests me - primarily Networks, Software Engineering, VoIP and Electronics. It exists in the hope that someone may learn from my thoughts and ramblings.
I'm on GitHub! I'm also currently fairly active on Twitter and LinkedIn.
Fixed: Outlook 2016 not synchronizing Inbox from IMAP after upgrade from 2013
After upgrading from Outlook 2013 to 2016, I found that new e-mails were not being downloaded from IMAP into the
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Fixed: Plex with Sonos – Unable to play – Unable to connect to Plex
This problem bugged me for a long time. I could list the contents of the Plex library in the Sonos
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Juniper SRX – Upgrading JunOS from USB
There’s a few ways to do this. Here’s the easiest: First, format your USB drive as fat32. Download the compressed
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Juniper SRX PPPoE Configuration for Plusnet ADSL
This was a bit of a faff, so I thought I’d document it. The setup here is an ADSL modem
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An overview of JunOS Quality of Service (QoS / CoS) configuration
JunOS QoS configuration is flexible, albeit a little tricky to understand. It has a few key components which I shall
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VLAN manipulation/translation on Juniper MX series routers
The MX series routers are truly excellent. As well as being used for routing, they can also be used for
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Chassis clustering a Juniper SRX firewall via a switch
Intro It is recommended that clustered SRX devices are directly connected. To do this, you need to run 2 cables,
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[SOLVED] pfSense – pfsync_undefer_state: unable to find deferred state
This pfSense bug has been present since 2.2 and is still present at the time of writing this. It occurs
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Configuring the permissions of a Samba share
Samba share permissions can be a bit fiddly. The user and group IDs which own the file on the Samba
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