Den här webbplatsen har begränsad funktionalitet medan vi utför underhåll för att förbättra din upplevelse. Om en artikel inte löser ditt problem och du vill ställa en fråga har vi vår gemenskap som väntar på att hjälpa dig på @FirefoxSupport på Twitter, /r/firefox på Reddit.

Sök i support

Akta dig för supportbedrägerier: Vi kommer aldrig att be dig att ringa eller skicka ett sms till ett telefonnummer eller dela personlig information. Rapportera misstänkt aktivitet med alternativet "Rapportera missbruk".

Läs mer

Why do some of my contacts not receive my emails?

  • 1 svar
  • 1 har detta problem
  • 5 visningar
  • Senaste svar av Matt

more options

Some of my contacts can't receive my emails. I get the following error messages:

"Remote host said: 553 5.1.3 bad address syntax"

"Remote host said: 501 Invalid Address [RCPT_TO]" "Remote host said: 501 Syntax error in parameters or arguments [RCPT_TO]"

I have talked to them personally and they say they aren't trying to block my messages.

The email addresses involved never used to give me a problem. Now it's every time.

Some of my contacts can't receive my emails. I get the following error messages: "Remote host said: 553 5.1.3 bad address syntax" "Remote host said: 501 Invalid Address [RCPT_TO]" "Remote host said: 501 Syntax error in parameters or arguments [RCPT_TO]" I have talked to them personally and they say they aren't trying to block my messages. The email addresses involved never used to give me a problem. Now it's every time.

Alla svar (1)

more options

are you requesting return or read receipts?