Yes, Gmail is down (sort of). Some people are having errors just on file attachments and uploading, while some people can't login at all. The Google Apps status page says they're investigating.

Gmail outage is causing errors for users around the world https://t.co/559IKkCPh9

— Richard Lawler (@rjcc) August 20, 2020

A #Gmail and Google Drive outage is causing errors for users around the worldhttps://t.co/wDN9Hg33Sc

— Naveen Jindal (@MPNaveenJindal) August 20, 2020

Be aware that Google has been experiencing issues overnight. They may impact Meets, Drive, Mail, and other services. https://t.co/zLyKaKPkpF

Google status can be viewed at The following URL.https://t.co/bgsTAHJM6Z

— ????? ??????, ??.?. (@wterral) August 20, 2020

Yup, can't send mail or upload files to Drive. #GoogleDown https://t.co/VqYPwWgOpU

— Iris Thiele Isip Tan MD, MSc (@endocrine_witch) August 20, 2020

지메일, 구글 드라이브 등에 문제가 있어 파일 첨부, 업로드, 전송 등이 되지 않는다고 함 https://t.co/rlPOEHnFPW https://t.co/G4chRK3UIA

— H. Kim (@metavital) August 20, 2020

A Gmail and Google Drive outage is causing errors around the worldhttps://t.co/PH7409svQv

— Charles Mok 莫乃光 (@charlesmok) August 20, 2020

A Gmail and Google Drive outage is causing errors around the world https://t.co/m8HwskrGzk #tech #feedly

— Nicolas Babin (@Nicochan33) August 20, 2020

5:40 AM update: Google is still investigating, and has confirmed that issues are affecting Gmail, Meet, Drive, Chat, Keep and Voicehttps://t.co/559IKkCPh9

— Richard Lawler (@rjcc) August 20, 2020

Gmail, Docs, Drive, and more Google services hit by widespread disruption https://t.co/7ggcgEc8Kd pic.twitter.com/CTvjKwOC88

— The Verge (@verge) August 20, 2020

#Gmail#Docs#Drive & more#Google SERViCES hit by widespread disruption https://t.co/TILWb6FStz
#bigdata #AI #IOT #DiGiTAL #TeCh #infosec #dataScientist #dataScience #Linux #FRENCHtech #100daysofCode #RStats #Javascript #France #USA #australianart #FemTech #womenWhoCode #UK

— Chidambara .ML. (@chidambara09) August 20, 2020

とりあえずGmailは明け方に直ったhttps://t.co/kSBDfDbHWj

— Dr.Masa ?Ph.D.?? (@Dr_Masa_PhD) August 20, 2020

Google says its investigation is ongoing following number of Google services including Gmail, Drive, Docs, Meet, Groups, Chat, Keep and Voice are experiencing service disruptions#Gmail #GmailDown #Google https://t.co/UWOrcQ8dnj

— Sri Lanka Tweet ?? (@SriLankaTweet) August 20, 2020

No shutdown, no downtime in #decentralized services ✌️@IPFS #Ethereum #Blockchainhttps://t.co/DcrWUyywvw

— Ethereum Push Notification Service | EPNS (@epnsproject) August 20, 2020