Re: [exim] Blocking a Class C

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Author: Jeremy Harris
Date:  
To: exim-users
Subject: Re: [exim] Blocking a Class C
On 19/01/2023 17:32, The Doctor via Exim-users wrote:
>> I assumed that you were blocking the pair
>>       (src ip 46.148.40.108, target port 25)
>> and was checking that you are also blocking
>>       (src ip 46.148.40.108, target port 465)

>>
> Could this cause a 601 error?


Possibly a typo? SMTP does not define any 6xx error code.

Also, irrelevant. Blocking done by a firewall would be
stopping TCP-level connection, so you won't get any SMTP
communication at all. How a client reports that is up to it.

--
Cheers,
Jeremy