Troubleshooter Extraordinaire :)

 We are using Microsoft 365 for their email service and recently faced an issue where outgoing emails to Gmail were not getting delivered because of the following error : 550 5.7.350 Remote server returned message detected as spam -> 550 5.7.1 [2a01:111:f403:c40f::7 19] Gmail has detected that this message;is likely suspicious due to the very low reputation of the sending;domain. To best protect our users from spam, the message has been;blocked. For more information, go to; https://support.google.com/mail/answer/188131 d9443c01a7336-220d5320c49si112823045ad.160 - gsmtp Now unless you have some kind of gold-star support with either Microsoft or Gmail, you are stuck with combing through documentation and forums to understand where to even start troubleshooting this error. The usual steps of checking if the domain is listed on spam sites (MultiRBL) and if TestExchangeConnectivity didnt give much insight into the error. After an hour of going through various forum posts, there was ...

Recently, I was tasked with setting up a Site-to-Site VPN between a Fortigate FG100-F in a High Availability (HA) configuration and a FG60-F. Both sites featured dual WAN links configured in an SD-WAN setup, along with multiple VLANs. I needed to setup multiple VLANs at the branch office Fortigate. I used the VLAN switch feature to create VLANs as sub-interfaces, and then added them to a zone to help with inter-vlan traffic, and for easier firewall policy configuration To completed the site-to-site VPN links despite consulting the Fortigate documentation, I couldn't find an example that exactly matched this scenario. After some extensive searching, I found a YouTube video that demonstrated this particular setup. You can watch it here . YouTube Video Summary The video, although in Spanish, provides a detailed walkthrough of setting up a Site-to-Site VPN between Fortigate devices in a similar environment. It covers the configuration of dual WAN links, SD-WAN, . Thanks to YouTube...

In a recent project, I encountered a challenge involving a protected PDF file that needed to be included in a multi-page document. The PDF file was around 100 KB, and due to file upload limitations, the entire document had to be under 2 MB. Unfortunately, the protection settings of the PDF prevented it from being added to the multi-page document, citing security restrictions. Additionally, Adobe's PDF printer does not allow printing protected PDFs to a new PDF file—quite a limitation from Adobe! To work around this, I used the Microsoft PDF Printer, which allowed me to save the file as an unprotected PDF. However, this resulted in a significant increase in file size, ballooning to around 3 MB. Despite attempting various methods to reduce the size, such as using "Optimize PDF," "Reduce PDF Size," and online compression tools, the results were minimal. After further research, I stumbled upon a forum suggestion to use the "Print As Image" option in the Ad...

Acrobat DC has a nifty tool to allow placing of saved signatures on documents. After a recent laptop replacement, one user couldnt find the tool to place the signatures needed. The issue came out to be that Acrobat removes the tool if the language setting of the applications is not set as English only. The application here was set to English & Arabic You have to go to Edit->Preferences->Language The Application Language option should be set as English Only After restarting the program, the Fill&sign option appeared in the Tools Section Ref: https://forums.adobe.com/thread/1945290

Today our Exchange servers refused to send out emails to the user mailboxes. After going through the logs, Warnings popped up for Exchange OAuth, which said that SMTPReceive connector was failing because of a certificate issue. So Exchange server installs a server authentication certificate used for Organizational Authentication for itself and other Exchange servers in the organization for intra-site communication, during initial setup Usually these certificates have a 5 year validity. Upon expiry, some services start failing to work as needed. Following the link and steps below, i was able to get  the services up and running again. ref: https://community.spiceworks.com/topic/512374-missing-the-microsoft-exchange-server-auth-certificate New-ExchangeCertificate -KeySize 2048 -PrivateKeyExportable $true -SubjectName "cn= Microsoft Exchange Server Auth Certificate" -DomainName "*.yourdomain.com" -FriendlyName "Microsoft Exchange Server Auth Certifica...

So I tried opening the EMS tool on our Exchange server and i was getting the dreaded Access Denied error. I was also unable to open the Exchange Toolbox. First issue i noticed was that the server time was off by 6 minutes. So I got that fixed first. w32tm is the utility used for that. But that didnt help with the original error After having enough of going through the logs for errors, and getting fed up of googling, i came across a forum which talked about two modules used by IIS to support authentication on the Powershell Folders under the Default WebSite, and the Exchange Back-End Site 1. WSMAN 2. KERBAUTH So I left KERBAUTH module on for the Powershell Folder under Default Website and removed WSMAN module from there. I enable KERBAUTH and WSMAN for the Powershell folder under Exchange Back-End Both modules have to be native and local when enabled. You can find them under the Configure Native Modules setting on the right side pane Its better to run iisreset after a...

I got to know about a nice feature in Word while looking to solve a problem for a office user. The user wanted to include customized header and footers so that they could be selected from the header drop down list The Quickparts button is available under the Insert Tab . Select the content that you want to replicate later. Click the QuickParts button, choose Save to Quick Part gallery. Then the building blocks menu comes up, and you can change the Gallery to which it is saved. Choose the Headers Gallery, and give the selection a name to be referenced to later. Once saved, the selection will be available for all future documents. This however requires you to save these changes to a file called BuildingBlocks.dotx, which Word will ask for when closing the program. The new custom header will now be available under the Headers drop down menu. Even footers and tables can be customized in a similar manner. For further info, please have a look at this link from TechRepublic. ...