Email does not get through

Question

Hello, 
 a sender does not come through by email. 
 There are no entries in the quarantine or data control report either. 
 So Sophos never received it. 
 The sender gets the following message: 
 Hi. This is the qmail-send program at *.com. I'm afraid I wasn't able to deliver your message to the following addresses. This is a permanent error; I've given up. Sorry it didn't work out. 
 <*@*.com>: 3.123.126.251 does not like recipient. Remote host said: 550 5.7.1 XGEMAIL_0008 Command rejected Giving up on 3.123.126.251. 
 What else can we do?

Chriz · Accepted Answer

Ok I recreated the mailbox, now this one sender in particular arrives again. For whatever reason.

Tom Foucha · Answer

Yes IF you or I forward an email from our client it changes the FROM to yours or my email address. If an auto-forward is not setup correctly it leaves the original authors email address which doesn't have permission to send email through Sophos. That would create an open relay and we don't allow that. Look through this forum posts for some others which explains it further and how to handle it at the server level - https://community.sophos.com/sophos-email/f/discussions/135767/forwarding-email-from-exchange-2019-not-working

Tom Foucha · Answer

It is inbound and I found it in logs rejected due to Customer Block List of IP Address, i now see that messages are successful after Chriz deleted and created the mailbox. Without sender/recipient information hard to discover, we always encourage support tickets so we can get the right details for sure!

Tom Foucha · Answer

Great, I could see it working in our logs. As I mentioned our system had that IP address as a block so we were honoring the block request. Glad it is working. Take care!

Email does not get through

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