GFI Software

Welcome to the GFI Software community forum! For support please open a ticket from

Home » GFI User Forums » Kerio Connect » Using anti-spoofing and Mandrill
Using anti-spoofing and Mandrill [message #146571] Mon, 09 September 2019 19:22 Go to previous message
macjimbo is currently offline  macjimbo
Messages: 60
Registered: June 2008
I've recently started using Mandrill for sending transactional emails to our customers and staff. The emails are addressed so that they are sent from name<_at_>

We still continue to use Kerio Connect 9.2.10 for all other email sending and receiving for our

This all works fine except when the Mandrill recipient is within our organisation (ie person<_at_>

Because I have sender anti-spoofing protection turned on (to stop outside organisations sending email pretending to come from us), the mail sent from Mandrill is blocked:

[09/Sep/2019 17:34:36] SMTP: Message from IP address x.x.x.x was rejected because of missing authentication for local domain sender <name<_at_>>.

Because Mandrill uses an ever-changing IP address range, I can't simply add their IP address range to the whitelist - so right now the only option I can see is to turn off the anti-spoofing protection.

Has anyone got any ideas how to work around this?


[Updated on: Mon, 09 September 2019 23:18]

Report message to a moderator

Read Message
Read Message
Read Message
Read Message
Previous Topic: Kerio Connect WEB Client - Need Printing Filter for Outbound Email
Next Topic: Kerio Connect. Not all email's coming to mail server
Goto Forum:

Current Time: Thu Jun 01 10:08:54 CEST 2023

Total time taken to generate the page: 0.06980 seconds