Hi, On 10 Dec 2025, at 14:41, Ralf Hildebrandt via Postfix-users wrote:
> Yes, the machine shouldn't have accepted [email protected] > in the first place, but... shouldn't bouncing the mail work anyway? > > These mails are all spam anyway, but I wonder WHY postfix would report > "bounce failed". > Should I add "-v" to the "bounce" entry in master.cf? > > There's no "(error|warning|fatal)" log entries in that period. > This is Postfix 3.5.25 I see the same here. These mails would bounce back to Google, and Google mail is not accepting the bounces with "550-5.2.1 The user you are trying to contact is receiving mail at a rate that prevents additional messages from being delivered. ..." Example: Dec 10 11:41:00 mx01 postfix/smtp[2970373]: 4dRC1R63pSz2xqb: <[email protected]> aspmx.l.google.com[173.194.76.27]:25, delay=0.21, delays=0.06/0/0.13/0.02, dsn=5.2.1, bounced (host aspmx.l.google.com[173.194.76.27] said: 550-5.2.1 The user you are trying to contact is receiving mail at a rate that 550-5.2.1 prevents additional messages from being delivered. For more 550-5.2.1 information, go to 550 5.2.1 https://support.google.com/mail/?p=ReceivingRatePerm ffacd0b85a97d-42fa6c137eesi204755f8f.139 - gsmtp (in reply to RCPT TO command)) It's also all spam as well. Greetings Carsten
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