Re: [exim] dot at the end of a local part

exim-users-bounces@??? wrote:
> On 02/05/2008, ROGERS Richard <Richard.Rogers@???> wrote:
>> Ted Cooper wrote:
>>> ROGERS Richard wrote:
>>>> exim-users-bounces@??? wrote:
>>>>> I have just seen examples of mail with a sender address whith the
>>>>> local part ending with a dot:
>>> [snip]
>>>> I added the following ACLs to our configs to avoid passing messages
>>>> through to Exchange that it would then reject, leading to a
>>>> bounce. I agree, it might be nice if there were a "strict address
>>>> checking" option incorporated into Exim that would do this job.
>>>> (For our purposes, an alternative would be to use the envelope
>>>> sender address in the call forward that we use to verify the
>>>> recipient, but I don't think that is currently an option either,
>>>> is it?) [snip]
>>>
>>> This isn't much of a help for you issue but more a question as to
>>> why you would be running into it.
>>>
>>> None of my servers have ever accepted a local part with a dot
>>> on the end
>>> and I will never run into the issue because it's not an account
>>> name. Why are you accepting local parts that don't have a valid
>>> account?
>>
>> We're not - it's the sender address that has this problem. Thus the
>> call forward for the recipient is OK (I think it's done with null
>> sender, yes?), but the actual delivery is rejected. By then it's too
>> late to reject with a 5xx at the Exim gateway.
>
> This might help:
>
> verify = recipient/callout=use_sender
>
> Peter

Thanks Peter, that sounds like exactly what we need. Not sure why I
hadn't picked up on that before - anyway, I'll give it a go...

regards

Richard

--
Richard Rogers
IT Development and Innovation Manager
Information Services, Staffordshire University


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