Greylisting sending server sends on different IP

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Posts: 13
Joined: 11 Apr 2016 18:32

Greylisting sending server sends on different IP

Post by northwindit » 14 Mar 2019 14:33


A few times i have run into this issue and i'm not sure of an automatic way of correcting it.

An email comes in and gets greylisted. 5 or so minutes later the sending server honors the request and sends the email again, however it then comes from a different IP address. How can i have greylist automatically honor this message and have it approved to be delivered to the employees mailbox?

As of now, i either have to wait for this endless loop to finally use an IP a second time, or i have to go in and configure the clients_fqdn_whitelist or clients_ip_whitelist to allow the emails through without future filtering.

Any ideas or suggestions are appreciated.

Posts: 47
Joined: 28 Apr 2015 14:40

Re: Greylisting sending server sends on different IP

Post by maxkmv » 06 Apr 2019 18:58

I had so many problems with greylisting that I disabled it completely.
(clients called to say emails never get delivered, quite possibly because Gmail and Outlook 365 use different IPs in their load balancing mail relays)

It's not a solution to your problem, but just my experience to say you are not alone!

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