Re: [ietf-smtp] own mail server: DNS / static IP / no bad reputation?

Laura Atkins <> Tue, 13 October 2020 07:29 UTC

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From: Laura Atkins <>
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Date: Tue, 13 Oct 2020 08:29:12 +0100
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Subject: Re: [ietf-smtp] own mail server: DNS / static IP / no bad reputation?
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> On 13 Oct 2020, at 05:37, Claus Assmann <> wrote:
> On Mon, Oct 12, 2020, Sam Varshavchik wrote:
>> [[...]] They pay for its electricity,
>> bandwidth, and hosting fees, and it is no one's business to tell them
>> whose mail they must accept or reject, and why.
> I am paying fees to my bank and they state they want to be contacted
> by e-mail. So I expect them to accept my e-mail (and answer if needed).

The choice to run your own server means you’re choosing to handle your own deliverability. In some cases, that means sending to specific places isn’t viable. We ran into a similar problem trying to send attachments (that were asked for and necessary) to a government department. Our tiny little mailserver couldn’t. We fell back to a gmail address and got the process handled. Was it frustrating? Eh. It was kinda annoying. But it wasn’t a huge barrier. 

In another recent case one of the major filtering provider started bouncing mail from us. Not because our MTA IP was blocked, but because they were doing some 2nd received line filtering and the IPv4 NAT our cable modem goes out was blocked. We followed the instructions in the bounce message and it was resolved in < 24 hours. Now, was it a mistake or was one of our neighbors spewing a bunch of spam / virus out through the NAT? I don’t know. In any case, it was resolved. 

I’ve actually found that filters are getting more friendly to small servers. 

The reality right now is: if you make the choice to run a mail server of any size you’re going to have to deal with deliverability issues. That’s part of what you’re opting into when you decide to run your own server. There are people out there who have spend over a decade providing deliverability advice, tools, and resources all for free. 

Filtering isn’t going away. If spam went away tomorrow, filters would still exist. This is just the reality any mail server operator needs to deal with. Don’t like it? You can outsource it to a 3rd party who will handle that for you. 


Having an Email Crisis?  We can help! 800 823-9674 

Laura Atkins
Word to the Wise
(650) 437-0741		

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