Barracuda RBL blocking all IPs
Posted: 23 Jul 2022 17:42
Not sure if this is a problem of eFA or with Barracuda, but I thought I would ask here.
For years I have been using two RBLs in eFA's Postfix config under SMTP Client Restrictions: zen.spamhaus.org and b.barracudacentral.com
Today I noticed that I hadn't received any mail for a while and when testing with MXToolbox and GMail they both reported this:
554 5.7.1 Service unavailable; Client host [209.85.217.53] blocked using b.barracudacentral.com
The IP address is one from Google's GMail service, but the IP address that MXToolbox uses gave the same error.
As soon as I removed the Barracuda RBL from Postfix, mail started to arrive again.
Anyone else noticed this? I think it started yesterday evening somewhere after 18:00 CET.
For years I have been using two RBLs in eFA's Postfix config under SMTP Client Restrictions: zen.spamhaus.org and b.barracudacentral.com
Today I noticed that I hadn't received any mail for a while and when testing with MXToolbox and GMail they both reported this:
554 5.7.1 Service unavailable; Client host [209.85.217.53] blocked using b.barracudacentral.com
The IP address is one from Google's GMail service, but the IP address that MXToolbox uses gave the same error.
As soon as I removed the Barracuda RBL from Postfix, mail started to arrive again.
Anyone else noticed this? I think it started yesterday evening somewhere after 18:00 CET.