Page 1 of 1

Recipient address rejected - but adress exists

Posted: 14 Feb 2020 15:50
by juan.syad
Hi all,

I get the following error on one single mailaddress. Other adresses on the same domain work without problems. I double checked the address, it really exists. How to come that efa tells it doesn't exsist?
Thanks for your help.

maillog:Feb 14 16:36:28 asp03 postfix/smtpd[3127]: NOQUEUE: reject: RCPT from mail-
oln040092073070.outbound.protection.outlook.com[40.92.73.70]: 550 5.1.1 <receipient@targetdomain.com>: Recipient address rejected: undeliverable address: No user at this address; from=<sender@outlook.com> to=<receipient@targetdomain.com> proto=ESMTP helo=<EUR04-HE1-obe.outbound.protection.outlook.com>

Re: Recipient address rejected - but adress exists

Posted: 14 Feb 2020 16:13
by juan.syad
Problem solved - customer tested the mailaddress before creating it so postfix cached the result. New efa installs have the "Automated recipient verification" enabled.

Is it possible to clear the cache?

Re: Recipient address rejected - but adress exists

Posted: 23 Dec 2020 14:13
by deajan
For me a

Code: Select all

systemctl restart postfix
did the job.

I would indeed like to know how long that cache lasts, and if it's useful to perform a scheduled cache cleaning.

Re: Recipient address rejected - but adress exists

Posted: 23 Dec 2020 15:37
by shawniverson
To reset cache:

Code: Select all

sudo systemctl stop postfix
sudo rm /var/lib/postfix/verify_cache.db
sudo systemctl start postfix