Email Provider Status
Before troubleshooting your own settings, it's worth ruling out a provider-side outage — it happens more often than people expect, and no setting change on your end will fix it. Below are direct links to each provider's own official status page, where one exists.
Gmail / Google Workspace
Outlook / Outlook.com / Microsoft 365
https://status.cloud.microsoft/m365/
Covers Outlook.com and consumer Microsoft 365. Business/tenant-specific issues show in your admin center instead.
Apple Mail / iCloud Mail
Zoho Mail
ProtonMail
Fastmail
Yahoo Mail
No official public status page. Yahoo typically acknowledges major outages on its support account on X, or on the Yahoo Help site.
AOL Mail
No official public status page. AOL is under the same parent company as Yahoo and follows a similar pattern — check their help page for outage acknowledgments during a major incident.
GMX Mail
No official public status page.
Mail.com
No official public status page. Same corporate family as GMX.
Yandex Mail
No official public status page.
Rediffmail
http://support.rediff.com/rediffmail.htm
No live status dashboard, but this support page is where Rediff itself has historically posted outage notices.
HEY
No public HEY-specific status page — check 37signals' general status channels if HEY is down for many people at once.
Verizon Email (@verizon.net)
Verizon.net mailboxes run through AOL now and have no separate status page — check AOL/Yahoo's general status channels if this is down for many people at once.
Comcast/Xfinity Email
https://www.xfinity.com/support/status
Xfinity's own status page covers broader service outages, which sometimes affect Xfinity Connect email too.
BellSouth Email (@bellsouth.net)
BellSouth mailboxes now run through AT&T Mail and have no separate status page — if AT&T's broader network or mail systems are having issues, that's where it would show up, but no dedicated public dashboard exists.
Thunderbird
Thunderbird is a desktop app, not a hosted service — if it stops working, check the status of whichever email provider you connect it to (e.g. Gmail, Outlook) above instead.
Windows Mail
The built-in Windows Mail app syncs to your actual email provider — check that provider's status above, not a "Windows Mail" status specifically.
Status page URLs were verified when this page was last updated and can change — if a link looks wrong, let us know.