Re: IBM i as email relay

[Peter Dow <petercdow@xxxxxxxxx>]

Rich,

Good company when he was still alive:

Simon Coulter.
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On 8/7/2024 10:18 AM, Rich Loeber wrote:
> Jeff,
>
> "Fly by night"?  Really?
>
> Rich Loeber
> Kisco Systems LLC
> http://www.kisco.com
>
> ________________________________
>
>
>
> On 8/7/2024 12:38 PM, Jeff Crosby wrote:
>
> Good Afternoon,
>
> V7R5 pretty up to date on PTFs.
>
> In preparation for no longer using gmail for email relay we're working with
> a vendor to use a different relay.  It so happens that the password is 69
> characters long.
>
> We have a couple Brother all-in-one devices that we (not often) email
> documents to employees.  They cannot handle passwords over 32 characters.
> Also, our Tripplite UPS cannot handle passwords over 64 characters.  No
> problem, I thought.  We'll just point them to the IBM i (in the cloud) and
> the IBM i can relay.
>
> I found this article from some fly by night author (haha):
>
> https://www.kisco.com/ibm-i-security-tips/ibm-i-smtp-relay-controls-2.html
>
> I used ADDSMTPLE to add 3 *ACCEPT entries:
>
> IP Address    Subnet Mask
> 192.168.0.0    255.255.0.0
> 10.100.0.167    255.255.0.0
> 10.46.0.2          255.255.255.255
>
> I point the Brother email settings to our IBM i internal IP address and try
> a test email.
>
> Using port 25 gives this error at the Brother device
>
> "Communication with the specified send e-mail server failed. It is possible
> that the network is busy or there is some problem. Please try again later."
>
> Using port 587 gives this error:
>
> "The specified send e-mail server cannot be found. The Send E-mail Server
> doesn't exist or the specified host doesn't support the service. Check the
> Send E-mail Server name and port number."
>
> Which leads me to believe that I am reaching the IBM i when using port 25
> because the error is different.
>
> I also tried it with the IBM i email relay to the not recommended
> ALWRLY(*ALL) in case I fubared the ADDSMTPLE stuff.  Same errors.
>
> A support person had me install Putty and connect to the IBM i on port 25.
> Got a blank screen with no welcome message.  We did the same thing with the
> service we're going to be using and got a welcome screen that said the
> service was ready.  The support person felt that the IBM i was not
> listening on port 25.
>
> However, the Work with IPv4 Connection Status screen shows that it is.
>
>        Remote           Remote  Local
>   Opt  Address           Port    Port  Idle Time  State
>        *                     *     21  020:47:45  Listen
>        *                     *     23  001:36:23  Listen
>        *                     *     25  000:04:35  Listen
>
> I then tried with port 26 and got a "connection refused" message.  So I
> think I am connecting on port 25.
>
> I'm guessing the issue is on our IBM i, but don't know what else to look at.
>
> Suggestions?
>
> Thanks.