SharePoint Online - Issues Saving Site as Template and Activating .wsp Solutions
Hello everyone, Recently I have been experiencing issues when saving a SharePoint site as a template and activating .wsp files within the Solution Gallery. This appears to be a recent change, as the same process and templates have worked successfully in the past. I wanted to see whether anyone else has recently experienced issues with SharePoint site templates (.wsp) in SharePoint Online. Findings: Site type is a Classic Team Site. Custom Script is enabled (DenyAddAndCustomizePages = Disabled). The .wsp file is successfully generated and appears in the Solution Gallery. The .wsp file does not activate. Activation fails with the error: "Activation of solutions with sandboxed code has been disabled." - Prior to this, SharePoint was only displaying a generic "Sorry, something went wrong" error. (All I did was turn content approval on and off in the Solution Gallery Library) Previously working .wsp files also fail to activate. The behaviour has been reproduced across multiple Microsoft 365 tenants. A Microsoft support ticket has already been raised. Has anyone else encountered this behaviour recently, or is aware of any changes affecting .wsp template activation in SharePoint Online? Thank you in advance for any insight or suggestions.
550 5.7.705 Tenant Email Block 55+ Hours - Support Unresolved
Our M365 tenant (labaradorpake.onmicrosoft.com) has been blocked from sending outbound email for over 55 hours with error 550 5.7.705 Access denied, tenant has exceeded threshold. Despite multiple support tickets and promises of 24-hour resolution, the block remains active. **Error Details:** - NDR: 550 5.7.705 Access denied, tenant has exceeded threshold - Scope: External outbound email only is blocked; internal tenant-to-tenant email works fine - Microsoft Defender Restricted Entities page shows 0 restricted users — the block is at tenant level, NOT user level - No transport rules exist that could be blocking outbound - No alerts in Exchange Admin Center **Timeline:** - June 19: Support ticket #2606190040005588 created, agent Manisha confirmed remediation complete and promised block would be lifted within 24 hours - June 21 (55+ hours later): Block STILL ACTIVE. Manisha has not responded to follow-ups. - June 21: Created 2nd ticket #2606210040000778, assigned to agent Odunayo — no action taken - June 21: Created 3rd ticket #2606210040000844 with phone callback request — no callback received yet **What we have tried:** 1. Three Microsoft support tickets (all Sev C) 2. Escalation emails to agent, tech lead, team manager (all bounce due to tenant block preventing outbound email) 3. Support Assistant chat bot — cannot escalate to human agents 4. Azure Portal support — No Access for this tenant tier 5. getsupport.microsoft.com — No Access 6. Microsoft Learn Q&A post: https://learn.microsoft.com/en-us/answers/questions/5926147 7. Phone callback requested on 3rd ticket — still waiting **Critical Impact:** The tenant cannot send ANY external email. All outbound messages to external recipients bounce with 550 5.7.705. This is a complete business email outage that has persisted for over 55 hours despite Microsoft support confirming remediation was complete. Has anyone experienced a similar tenant-level block (550 5.7.705) that took this long to resolve? What escalation paths actually work when support agents are unresponsive? Any advice on getting this block lifted urgently would be greatly appreciated. Cross-posted from Microsoft Learn Q&A: https://learn.microsoft.com/en-us/answers/questions/5926147
Not For Profit Licence suddenly disappeared and then deleted
Hi All Have a big issue. Have a not for profit account for our charity. Renewed licence earlier in the year and all was ok and working. Then a few days ago I had reports of not being able to access data. After much hunting I found the below. Seems account was suddenly and without warning disabled and then reported as deleted a few days later. What do I do? I desperately need to recover the files that were on the associated teams? Any help would be much appreciated
Moving Office 365 Mailboxes to IMAP Servers - What’s the Best Approach
I’ve recently been looking into scenarios where organizations need to move mailboxes from Microsoft 365 to IMAP based email servers, and I noticed this is still a common requirement in many migrations. In most cases, the challenge is not just moving emails, but making sure everything like folder structure, old emails, and user data stays intact without creating too much disruption for users. From what I’ve seen, doing this manually can get very complex, especially when there are multiple mailboxes or large data volumes involved. That’s where migration tools usually come into the picture. Most tools simplify things by handling: 1. Secure connection to Microsoft 365 accounts 2. Bulk mailbox migration 3. Preserving folder hierarchy 4. Reducing downtime during the move 5. Avoiding duplicate data issues One thing I’ve noticed is that running a small pilot migration first always helps. It gives a clear idea of how the actual migration will behave before moving all users. Has anyone here worked on Office 365 to IMAP migration at scale? Would be good to know what approaches or tools worked best in your case and what challenges you faced during the process.I built a free, open-source M365 security assessment tool - looking for feedback
I work as an IT consultant, and a good chunk of my time is spent assessing Microsoft 365 environments for small and mid-sized businesses. Every engagement started the same way: connect to five different PowerShell modules, run dozens of commands across Entra ID, Exchange Online, Defender, SharePoint, and Teams, manually compare each setting against CIS benchmarks, then spend hours assembling everything into a report the client could actually read. The tools that automate this either cost thousands per year, require standing up Azure infrastructure just to run, or only cover one service area. I wanted something simpler: one command that connects, assesses, and produces a client-ready deliverable. So I built it. What M365 Assess does https://github.com/Daren9m/M365-Assess is a PowerShell-based security assessment tool that runs against a Microsoft 365 tenant and produces a comprehensive set of reports. Here is what you get from a single run: 57 automated security checks aligned to the CIS Microsoft 365 Foundations Benchmark v6.0.1, covering Entra ID, Exchange Online, Defender for Office 365, SharePoint Online, and Teams 12 compliance frameworks mapped simultaneously -- every finding is cross-referenced against NIST 800-53, NIST CSF 2.0, ISO 27001:2022, SOC 2, HIPAA, PCI DSS v4.0.1, CMMC 2.0, CISA SCuBA, and DISA STIG (plus CIS profiles for E3 L1/L2 and E5 L1/L2) 20+ CSV exports covering users, mailboxes, MFA status, admin roles, conditional access policies, mail flow rules, device compliance, and more A self-contained HTML report with an executive summary, severity badges, sortable tables, and a compliance overview dashboard -- no external dependencies, fully base64-encoded, just open it in any browser or email it directly The entire assessment is read-only. It never modifies tenant settings. Only Get-* cmdlets are used. A few things I'm proud of Real-time progress in the console. As the assessment runs, you see each check complete with live status indicators and timing. No staring at a blank terminal wondering if it hung. The HTML report is a single file. Logos, backgrounds, fonts -- everything is embedded. You can email the report as an attachment and it renders perfectly. It supports dark mode (auto-detects system preference), and all tables are sortable by clicking column headers. Compliance framework mapping. This was the feature that took the most work. The compliance overview shows coverage percentages across all 12 frameworks, with drill-down to individual controls. Each finding links back to its CIS control ID and maps to every applicable framework control. Pass/Fail detail tables. Each security check shows the CIS control reference, what was checked, what the expected value is, what the actual value is, and a clear Pass/Fail/Warning status. Findings include remediation descriptions to help prioritize fixes. Quick start If you want to try it out, it takes about 5 minutes to get running: # Install prerequisites (if you don't have them already) Install-Module Microsoft.Graph, ExchangeOnlineManagement -Scope CurrentUser Clone and run git clone https://github.com/Daren9m/M365-Assess.git cd M365-Assess .\Invoke-M365Assessment.ps1 The interactive wizard walks you through selecting assessment sections, entering your tenant ID, and choosing an authentication method (interactive browser login, certificate-based, or pre-existing connections). Results land in a timestamped folder with all CSVs and the HTML report. Requires PowerShell 7.x and runs on Windows (macOS and Linux are experimental -- I would love help testing those platforms). Cloud support M365 Assess works with: Commercial (global) tenants GCC, GCC High, and DoD environments If you work in government cloud, the tool handles the different endpoint URIs automatically. What is next This is actively maintained and I have a roadmap of improvements: More automated checks -- 140 CIS v6.0.1 controls are tracked in the registry, with 57 automated today. Expanding coverage is the top priority. Remediation commands -- PowerShell snippets and portal steps for each finding, so you can fix issues directly from the report. XLSX compliance matrix -- A spreadsheet export for audit teams who need to work in Excel. Standalone report regeneration -- Re-run the report from existing CSV data without re-assessing the tenant. I would love your feedback I have been building this for my own consulting work, but I think it could be useful to the broader community. If you try it, I would genuinely appreciate hearing: What checks should I prioritize next? Which security controls matter most in your environment? What compliance frameworks are most requested by your clients or auditors? How does the report land with non-technical stakeholders? Is the executive summary useful, or does it need work? macOS/Linux users -- does it run? What breaks? I have tested it on macOS, but not extensively. Bug reports, feature requests, and contributions are all welcome on GitHub. Repository: https://github.com/Daren9m/M365-Assess License: MIT (free for commercial and personal use) Runtime: PowerShell 7.x Thanks for reading. Happy to answer any questions in the comments.Microsoft Blocks Graph Access to Non-IPM Folders
An app written to fetch details of Copilot interactions from the TeamsMessagesData folder suddenly stopped working when the Graph refused to return items. The 403 forbidden error can’t be argued with. Fortunately, the aiInteractionHistory API fills the gap, even if the API does not return the full text of Copilot responses. That information is available, but you’ll need to use eDiscovery to get it. https://office365itpros.com/2026/06/18/copilot-interaction-app/
MCA billing account stuck in "under review" status for 4+ days, no resolution
I'm the Global Admin for a Microsoft 365 tenant (domain: fortunamg.net) recently transitioned from a GoDaddy CSP reseller relationship to a direct Microsoft Customer Agreement (MCA) billing account. After setting up the MCA billing account and adding a payment method, I attempted to make an edit to my billing account address (updating to the new 9-digit zip code format). This triggered an "Account under review" status, which states the review usually takes up to 2 days. It has now been over 4 days with no update or email notification. This review is blocking me from purchasing a subscription, which I need to do to restore an active Microsoft 365 subscription on this tenant (currently showing as "Disabled" following the GoDaddy detach). Billing Account ID: 7793dd6e-68c9-5362-c5e2-3fe091b9854c Domain: fortunamg.net Could someone help check the status of this review or escalate to the appropriate team? Phone support has been unable to resolve this. Thank you.
Sole Admin Locked out of Microsoft tenant -- MFA Error 500121
Sole Admin Locked out of Microsoft 365 Tenant- MFA Error 500121 using OTPKEY Im the original administrator of a Microsoft 365 Business Basic tenant for the City of Briarcliff. Tenant: mailto:email address removed for privacy reasons Admin Account: mailto:admin@briarcliffar.onmicrosoft I can succesfully enter the correct password, nut MFA verification fails with error code 500121. I have original microsoft 365 setup email showing the admin account The microsoft purchase receipt and Order ID. Access to billing email account Control of the cityofbriarcliff.gov domain through Cloudflare. The tenant was never fully configured beyond the initial setup process. I was able to sign in originally and reached the Connect and Configure your domain page but did not complete deployment. I need assisstance with recovery of the sole administrator account and MFA reset for tenant. I can provide provide proof of purchase, original setup email, billing information, and proof of control of cityofbriarcliff.gov
mail@mydomain is causing a cert mismatch error in all browsers for Outlook.com
Hello, I have created a CNAME for our users in my domain so that they can access webmail. For example, it's called mail.mycustomdomain.com, and it is directed to Outlook.com But when I try to visit mail.mycustomdomain.com, it shows a security warning and recommends going back. I can understand because the SAN name in the certificate presented by Outlook doesn't include my CNAME. Is there anything I can do as a workaround so our users can enter the CNAME without encountering a Certificate Mismatch Error? It is causing repeated calls to the helpdesk, and we would like them to use something simple they can remember. Thanks
