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Hi Everyone, Just wanted to ask whether anyone knows the best method to get in contact with Microsoft regarding False Positive of email delivery? It was working perfectly for years and no changes on our side, and then about 2 weeks ago, all emails to Microsoft recipients stopped receiving...

Hi have clients running Outlook and there seems to be a strange behaviour occurring and I dont know whether this is related to PMG as it appears to only happen after an email is sent. From what I can replicate (same domain for both sender and receiver): Action #1 Send email from...

I have Verify Receivers Yes (550) enabled. Is there any way I can remove an email (or purge ) from the list and not wait the timeout period which I believe was 7 days? If I Disable verify, the email comes through. Yes the problem was I forgot to create the email before testing sending emails...

I have been advised of the following SPAM: HEADER Received: from SERVER.internal.local (192.168.000.000) by SERVER.internal.local (192.168.000.000) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id 15.1.2507.21 via Mailbox Transport; Sat, 17...

Hi have a PMG on a Hyper-V Host and found that the upload is highly limited to 15 mbps when downloads are around 900+ mbps. I have to run this line which fixes the problem: sudo ethtool -K eth0 gro off gso off tso off lro off This fixes the slowness and uploads becomes the same speed as...

I have started trapping some messages for review and found this: USER_IN_WELCOMELIST -0.01 User is listed in 'welcomelist_from' USER_IN_WHITELIST -100 DEPRECATED: See USER_IN_WELCOMELIST I found this was implemented in 2020 sometime, however does anyone know when this change would...

https://www.crdf.fr/ I was looking around to validate for Malicious URLs and found the above site. Has anyone implemented CRDF to check URLs contained within an Email?

I cannot seem to find any articles in my quick 5 minute search - please link if there were anything and appreciate your time. We are getting a lot of emails originating from Microsoft and Google servers which are clearly SPAM, however they obviously pass most test especially when they are...

I have followed the guide: https://forum.proxmox.com/threads/how-to-integrate-eset-antivirus-with-pmg.49788/post-232199 https://forum.proxmox.com/threads/pmg-6-1-how-to-add-antivirus.67006/#post-320192 Since implementing ESET, my average processing time has almost tripled on the same hardware...

Yes it is a really basic question - however I have some a small anxiety with autoremove. Yes I have tested on a test platform and that works perfectly, however is there anything that anyone would suggest just incase as a precautionary step? EDIT: Sorry, this is wrong thread, should be under...

I am currently using Abusix and a certain IP has been marked as reject/disconnect. Our client needs their emails and the listed IP isnt abused and just needs to be cleared from Abusix DB. I did see this: https://www.howtoforge.com/how-to-whitelist-hosts-ip-addresses-in-postfix...

I am sure its me, however I cannot seem to get GeoIP working. I have following this guide which is a variation of Heutgers': https://github.com/killmasta93/tutorials/wiki/PMG-Harden#geoip...

Is there a reason why SA score are not shown lower than 0/zero or in decimals? I would like to make adjustments and would be great if it showed the negative values so that I can determine its overall score without having to calculate the scores? For example this log score is -6.772: SA...

Currently for me my time is Feb 1, 2022 13:26 AEST when this was posted. Tracking Centre is blank again as the same for the start of the year. Did the following after 5:45pm as I can reboot and have minimal impact on clients: I have restarted SysLog service and rebooted the server and not...

Is PMG able to reject and send out such an NDR? <username@domain.com>: host server.domain.com[111.222.333.444] said: 550 #5.7.5 DKIM unauthenticated mail is prohibited (in reply to end of DATA command) I have just started seeing these and primarily from Government domains and would...

Just wondering, is there a way to utilise the filter functions 'better'? I am doing my weekly checks and yes I could be using smaller time frames, exporting the logs etc, BUT, I will honestly say I am lazy. Like I would love if the GUI could have some awesome search features like: Status Type...

I have started to migrate our outbound emails to go through PMG - however I have also started to notice emails sent from users being blocked (yes I have added additional checks not standard to PMG): Spam detection results: 5 AWL -0.745 Adjusted score from AWL reputation of...

I am testing greylisting and wanted to know its statistics - is there a method for me to obtain something about Greylisting such as how many greylisted emails actually gets delivered or how many emails are greylisted? Really I wanted to measure the effectiveness of greylisting. Maybe I am...

I forgot I was not supposed to use apt upgrade, but I did! I did the dist-upgrade afterwards, however ClamAV is just not updating. I am still on 6.4-4 - what are my options to get ClamAV working? Ideally I would prefer to stay on 6.4 for now - however if upgrading to 7 is the fix, then Ill...

Hi All, After discovering how to apply Custom Rules, its got me down this RegEx rabbit hole. Is anyone able to help with the following that I have 'hacked' together - it is working, but not optimal IMO for both header and URI searches. (\.(fit|link)+?)(?:$|\/|\:)...