A global Microsoft outage has disrupted email delivery, affecting rail passengers' access to e-tickets.
Customers who purchased tickets after the outage began may be unable to retrieve them from their email inboxes.
National Rail has warned travellers to use alternative methods to access their tickets.
A spokesman said: "We’re aware of the ongoing Microsoft global outage, which may be affecting customers’ ability to access their train tickets via their email inbox.
"If you’re unable to locate or access your tickets through your email due to this issue, you may still be able to access your tickets by visiting the website or app where you purchased your tickets from and logging into your account.
‼️We’re aware of the ongoing Microsoft global outage, which may be affecting customers’ ability to access their train tickets via their email inbox. 🔗Latest Information and advice can be found here: https://t.co/pYa714hR8k
— National Rail (@nationalrailenq) November 13, 2026
"We recommend doing this before you travel to ensure you have your tickets readily available for your journey.
"This may not be possible if you checked out as a guest – please contact your ticket retailer directly if you are unable to access your tickets.
"If you are still unable to access your ticket, please contact a member of onboard staff or station staff for advice."
Great Western Railway confirmed that ticket confirmation emails are also affected by the outage, but passengers can still retrieve their tickets through the company’s app or online account.
Other rail operators, including Southeastern, Chiltern Railways and London North Eastern Railway (LNER), have reported similar problems with emailed tickets.
They are directing passengers to use their online accounts or mobile apps to access bookings.
A spokesman for Chiltern Railways said: "We’re sorry for any inconvenience this may cause and thank you for your patience and understanding while Microsoft works to resolve the issue."
The Microsoft outage has impacted millions of users worldwide, disrupting access to key services and email communications.
Microsoft has said it is working with urgency to resolve the issues.
Passengers are advised to check for e-tickets in their online accounts before travelling and to seek assistance from rail staff if they cannot access their tickets.
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