We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Vanwege onderhoudswerkzaamheden die uw ervaring zouden moeten verbeteren, heeft deze website beperkte functionaliteit. Als een artikel uw probleem niet verhelpt en u een vraag wilt stellen, kan onze ondersteuningsgemeenschap u helpen in @FirefoxSupport op Twitter en /r/firefox op Reddit.

Avatar for Username

Zoeken in Support

Vermijd ondersteuningsscams. We zullen u nooit vragen een telefoonnummer te bellen, er een sms naar te sturen of persoonlijke gegevens te delen. Meld verdachte activiteit met de optie ‘Misbruik melden’.

Meer info

Deze conversatie is gearchiveerd. Stel een nieuwe vraag als u hulp nodig hebt.

Cannot Send email - SMTP error for Office 365

  • 1 antwoord
  • 1 heeft dit probleem
  • 1 weergave
  • Laatste antwoord van Matt

DaegLeung
DaegLeung
more options

I have configured the email account correctly, following the office 365 suggestions and set the port to 587, security set at STARTTLS, yet it gets me this error.

Sending of the message failed. An error occurred while sending mail: Outgoing server (SMTP) smtp.office365.com is unknown. The server may be incorrectly configured. Please verify that your Outgoing server (SMTP) settings are correct and try again.

The funny thing was this happens from time to time, sometimes I could send an email out with no problem, but sometimes I got this.

Any help would be appreciated. Thanks!.

I have configured the email account correctly, following the office 365 suggestions and set the port to 587, security set at STARTTLS, yet it gets me this error. Sending of the message failed. An error occurred while sending mail: Outgoing server (SMTP) smtp.office365.com is unknown. The server may be incorrectly configured. Please verify that your Outgoing server (SMTP) settings are correct and try again. The funny thing was this happens from time to time, sometimes I could send an email out with no problem, but sometimes I got this. Any help would be appreciated. Thanks!.

Alle antwoorden (1)

Matt
Matt
  • Moderator
  • Top 10 Contributor
more options

I blame DNS. after all if the server is unknown it is because DNS has not located it.