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!

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Email error code 550

  • 2 replies
  • 1 has this problem
  • 1 view
  • Last reply by cor-el

sheila_vassie
sheila_vassie
more options

Hi, Since Jan I am unable to send Emails to @was-luzern.ch I can receive them, but every mail I try to send is returned with this error message: Email error code 550: Emails from your address have been blocked by the administrator.

I just sent same mail via Chrome with no problem!

It seems this could be a Firefox related problem, any idea?

Hi, Since Jan I am unable to send Emails to @was-luzern.ch I can receive them, but every mail I try to send is returned with this error message: Email error code 550: Emails from your address have been blocked by the administrator. I just sent same mail via Chrome with no problem! It seems this could be a Firefox related problem, any idea?

All Replies (2)

FredMcD
FredMcD
more options

sheila_vassie said
Email error code 550: Emails from your address have been blocked by the administrator.

Does the error come from your e-provider, or from the website you are sending the message to? Try contacting your e-provider support on this.

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Are you possibly using a VPN or proxy ?