Notice of Microsoft 365 Service Outage – RESOLVED
Notice: On 22Jan2026, Microsoft experienced a Microsoft 365 service outage that may have caused delays in email delivery from dpiusa.com. This issue affected multiple Microsoft 365 customers and may have impacted your ability to receive messages from our organization, as well as general access to Microsoft 365 services.
Microsoft has since confirmed that the issue has been resolved and that services are operating normally. If you have not received a reply from us to any message sent on 22Jan2026 however, please resend your message.
We understand the importance of timely and reliable communication and apologize for any inconvenience this disruption may have caused.
2026 Holiday Schedule
Please be advised, DPI will observe the following holidays in 2026:
| New Year’s Day | Thursday | 01Jan2026 |
| Martin Luther King Day | Monday | 19Jan2026 |
| Presidents Day | Monday | 16Feb2026 |
| Memorial Day | Monday | 25May2026 |
| Independence Day | Friday | 03Jul2026 |
| Labor Day | Monday | 07Sep2026 |
| Thanksgiving Day | Thursday | 26Nov2026 |
| Day after Thanksgiving | Friday | 27Nov2026 |
| Christmas Day | Friday | 25Dec2026 |
Our web servers at www.dpiusa.com and email servers will be in full operation during these days. Tariff filing requests received on these days will be processed on the next business day and confirmed the following business day; thank-you for your cooperation.



