14May 2020 by Jim Blaich

Proxmox Mail Gateway rejections from some domains but not others, aka “my last post if full of shit”, sort of.

computers, dovecot, email server, Linux, Postfix
It is really hard to test some of this stuff out.  In my last post I did certainly cover the effect but I thought I understood the cause as well.  That is not the case, so I was full of shit, so to speak, and sort of. The problem was, if my customer sent or forwarded from some domains both related to one company the emails were rejected.  A reject email was sent back to the originator of the email. I thought this had to do with configuration of the Proxmox Mail Gateway (PMG).  That was partially correct.  Those things I spoke about in my previous post were problems, and I did correct them, and that is a good thing.  There was more wrong.  I needed to resolve that as…
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11May 2020 by Jim Blaich

Proxmox mail gateway rejected some emails claiming SPF failure.

Uncategorized
The one thing about computing is that it is so literal.  I wish programmers would add some intelligence into their products, yet allow us to override it. In this case for a customer a user attempted to forward an email from her old email account to the one I set up on their very own email server.  It worked great, but I didn't have the proxmox mail gateway put in place. When I set this up I immediately got a message from her telling me that the forwarded message didn't go through to the new server, that it had rejected it and sent her a reject message. She forwarded me the rejected email and I looked it over and found that it said SPF failure. I checked her registrar's DNS…
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08May 2020 by Jim Blaich

Roundcube Webmail Error 600 Service Unavailable when setting identities for things such as setting your signature.

Uncategorized
I just set up an email server for someone and after encouraging them to use it I decided to configure some of the features, one of which was the signature block.  I initially just wanted to ensure that the reply that I make to a user has the quoted text from the original email below where I type and to have my signature in the proper place just above the quoted text. I did some searching and found that you have to set this in identities under roundcube's settings.  I chose to do this and received an error Service Unavailable Error 600.  That's the rough wording. After searching one person said that the issue could be a permissions issue in the plugins folder.  I checked and ensured that all the…
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08May 2020 by Jim Blaich

Proxmox Container Fails to Start on New Setup

Uncategorized
Proxmox is set up in an exceptional way, except one. That is obviousness for certain features.  It tries but fails.  Here's what I mean. When set up proxmox you tell it to create storages.  In my case I have the SSD that I installed promox onto.  It sets up a small portion for the OS and the remainder is left to allow for you to use as you see fit.  In my case I always set up a second drive or array of drives.  This is where all my containers go and is typically much larger than the boot drive that promox was installed on. Here's the issue that I dealt with yesterday and today.  I set up an email container based on Ubuntu 18.04 LTS.  In here I installed…
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