Recipient address rejected - but adress exists

Bugs in eFa 4
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juan.syad
Posts: 3
Joined: 14 Feb 2020 15:45

Recipient address rejected - but adress exists

Post by juan.syad » 14 Feb 2020 15:50

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>

juan.syad
Posts: 3
Joined: 14 Feb 2020 15:45

Re: Recipient address rejected - but adress exists

Post by juan.syad » 14 Feb 2020 16:13

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?

deajan
Posts: 1
Joined: 23 Dec 2020 14:11

Re: Recipient address rejected - but adress exists

Post by deajan » 23 Dec 2020 14:13

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.

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shawniverson
Posts: 3283
Joined: 13 Jan 2014 23:30
Location: Indianapolis, Indiana USA
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Re: Recipient address rejected - but adress exists

Post by shawniverson » 23 Dec 2020 15:37

To reset cache:

Code: Select all

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

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