Re: [mailop] Charter/Spectrum Tampa SMTP relay question
- Original Message - > From: "L. Mark Stone via mailop" > I live in a Spectrum market, and their Consumer Internet Terms of Service > prohibit certain (what they deem to be commercial) activities, like hosting an > email server. In years past, they just blocked outbound port 25 on consumer > internet connections. > > My suspicion is Spectrum have recently added this new enforcement capability; > you may want to check if your customer's Kerio server is connected to the > Internet via a real Business account or not as a first step. Well, I have it from a Charter person that they no longer permit relaying for ANY accounts, business or residential -- not through their mailservers, anyway. Haven't for a long time, is the impression I was given; we were just lucky that the implementation took this long to get to our mailserver in/for Tampa. So it's flip off relaying and see if the cableswamp is still getting blocked everywhere, or find a relay service on a "real" IP in a datacenter somewhere. Cheers, -- jra -- Jay R. Ashworth Baylink j...@baylink.com Designer The Things I Think RFC 2100 Ashworth & Associates http://www.bcp38.info 2000 Land Rover DII St Petersburg FL USA BCP38: Ask For It By Name! +1 727 647 1274 ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
Re: [mailop] Charter/Spectrum Tampa SMTP relay question
- Original Message - > From: "Jarland Donnell via mailop" > Relaying your domain email through your local ISP, is that a common > approach? It seems weird from my perspective. I’d route it through > mail.baby instead and call it a day. Interserver is doing great work > over there with a mailchannels fallback for pennies. Legacy setup, I just parachuted in. But their uplink is cablemodem, even though static, in 24/8; are there not cable-swamp problems with outbound SMTP these days? They do have working RDNS for the IP, at least, I see it in the MXtoolbox test logs... Cheers, -- jra -- Jay R. Ashworth Baylink j...@baylink.com Designer The Things I Think RFC 2100 Ashworth & Associates http://www.bcp38.info 2000 Land Rover DII St Petersburg FL USA BCP38: Ask For It By Name! +1 727 647 1274 ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
Re: [mailop] Charter/Spectrum Tampa SMTP relay question
Relaying your domain email through your local ISP, is that a common approach? It seems weird from my perspective. I’d route it through mail.baby instead and call it a day. Interserver is doing great work over there with a mailchannels fallback for pennies. On 2023-04-28 10:11, Jay R. Ashworth via mailop wrote: A couple days ago, a client started getting 550 errors on their outbound mail from a local install of KerioConnect, saying that the From had to match the email address in the SMTP Auth -- which of course it wouldn't, domain relaying doesn't work like that. This sounds like a deliverability policy change, and I hope it's obvious why I don't even *expect* the tech support line to know what I'm talking about. :-) Can anyone in Spectrum confirm or deny, and maybe tell me what the expected way to do this has become now? Cheers, -- jra ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
Re: [mailop] Charter/Spectrum Tampa SMTP relay question
I live in a Spectrum market, and their Consumer Internet Terms of Service prohibit certain (what they deem to be commercial) activities, like hosting an email server. In years past, they just blocked outbound port 25 on consumer internet connections. My suspicion is Spectrum have recently added this new enforcement capability; you may want to check if your customer's Kerio server is connected to the Internet via a real Business account or not as a first step. Regards, Mark _ L. Mark Stone, Founder North America's Leading Zimbra VAR/BSP/Training Partner For Companies With Mission-Critical Email Needs - Original Message - From: "Jay R. Ashworth via mailop" To: "mailop" Sent: Friday, April 28, 2023 11:11:05 AM Subject: [mailop] Charter/Spectrum Tampa SMTP relay question A couple days ago, a client started getting 550 errors on their outbound mail from a local install of KerioConnect, saying that the From had to match the email address in the SMTP Auth -- which of course it wouldn't, domain relaying doesn't work like that. This sounds like a deliverability policy change, and I hope it's obvious why I don't even *expect* the tech support line to know what I'm talking about. :-) Can anyone in Spectrum confirm or deny, and maybe tell me what the expected way to do this has become now? Cheers, -- jra -- Jay R. Ashworth Baylink j...@baylink.com Designer The Things I Think RFC 2100 Ashworth & Associates http://www.bcp38.info 2000 Land Rover DII St Petersburg FL USA BCP38: Ask For It By Name! +1 727 647 1274 ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
[mailop] Charter/Spectrum Tampa SMTP relay question
A couple days ago, a client started getting 550 errors on their outbound mail from a local install of KerioConnect, saying that the From had to match the email address in the SMTP Auth -- which of course it wouldn't, domain relaying doesn't work like that. This sounds like a deliverability policy change, and I hope it's obvious why I don't even *expect* the tech support line to know what I'm talking about. :-) Can anyone in Spectrum confirm or deny, and maybe tell me what the expected way to do this has become now? Cheers, -- jra -- Jay R. Ashworth Baylink j...@baylink.com Designer The Things I Think RFC 2100 Ashworth & Associates http://www.bcp38.info 2000 Land Rover DII St Petersburg FL USA BCP38: Ask For It By Name! +1 727 647 1274 ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
