E-Mail Sending Has Stopped Working On Hardware Devices
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@JaredBusch said in Port 25 E-Mail Sending Has Stopped Working:
@garak0410 said in Port 25 E-Mail Sending Has Stopped Working:
No, no prior connector made, so guessing it was just luck. I did get the alert that on June 2020, TLS 1.0, and 1.1 were being retired for 1.2+ but it should still be working now, correct? And oddly, it was about the time of that "Office 365 Alert" that this stopped working.
Yes, if you have no connector setup, then it was pure luck that this was ever working.
Basically as far as O365 was concerned, your copier was an entire email server somewhere sending email in to your domain like any other public email server.
Do you have your office IP address in your SPF TXT record for your domain?
I wonder why the Dell VTRX also stopped sending alerts...has to be related.
Yes...I have two TXT records...one for a 192 address and the other for that SFP domain name. Nothing has changed there...
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@JaredBusch said in Port 25 E-Mail Sending Has Stopped Working:
@Dashrender said in Port 25 E-Mail Sending Has Stopped Working:
There is no mention that unencrypted port 25 was going to change, so currently TLS 1.0 should still work until June 2020
The two parts of your statement have nothing to do with each other.
Unencrypted SMTP does not use TLS 1.0 or any other version of SSL or TLS. Because it is unencrypted.....I was on my phone and interrupted.. yeah yeah.
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@garak0410 said in Port 25 E-Mail Sending Has Stopped Working:
@JaredBusch said in Port 25 E-Mail Sending Has Stopped Working:
@garak0410 said in Port 25 E-Mail Sending Has Stopped Working:
No, no prior connector made, so guessing it was just luck. I did get the alert that on June 2020, TLS 1.0, and 1.1 were being retired for 1.2+ but it should still be working now, correct? And oddly, it was about the time of that "Office 365 Alert" that this stopped working.
Yes, if you have no connector setup, then it was pure luck that this was ever working.
Basically as far as O365 was concerned, your copier was an entire email server somewhere sending email in to your domain like any other public email server.
Do you have your office IP address in your SPF TXT record for your domain?
I wonder why the Dell VTRX also stopped sending alerts...has to be related.
Yes...I have two TXT records...one for a 192 address and the other for that SFP domain name. Nothing has changed there...
I didn't know you could have two SPF records - and things work as expected.
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@Dashrender said in Port 25 E-Mail Sending Has Stopped Working:
There is no mention that unencrypted port 25 was going to change, so currently TLS 1.0 should still work until June 2020
What I meant to say was -
Are your devices attempting to use opportunistic TLS? or are they going purely unencrypted?
If purely unencrypted - then I wouldn't expect that MS's killing of TLS 1.0 and 1.1 would ever make any difference.
But if it is using opportunistic TLS, then it should still work today even if your equipment is stuck on TLS 1.0 or 1.1
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@Dashrender said in Port 25 E-Mail Sending Has Stopped Working:
@Dashrender said in Port 25 E-Mail Sending Has Stopped Working:
There is no mention that unencrypted port 25 was going to change, so currently TLS 1.0 should still work until June 2020
What I meant to say was -
Are your devices attempting to use opportunistic TLS? or are they going purely unencrypted?
If purely unencrypted - then I wouldn't expect that MS's killing of TLS 1.0 and 1.1 would ever make any difference.
But if it is using opportunistic TLS, then it should still work today even if your equipment is stuck on TLS 1.0 or 1.1
That is a good question. On the Dell VTRX (screen shot above) it is just Plain Jane. Oh the Toshiba, I have options to adjust some SSL / TLS settings but even that won't work.
If there is any correlation between the copiers and Dell VTRX is that they are both non-windows/non-web browser based devices.
I've spent way too much time on this but it will have to be resolved.
I set up SCAN TO EMAIL on some Enterprise HP printers we have and it also fails: General send to email error
It was set to Port 25 and no authentication needed.
I then set it up to 587 and authentication...same generic error: General send to email error
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I've setup a proxy for decrypting TLS SMTP connections once for troubleshooting when I didn't have the private key for the SMTP server. Can't remember the name of the software I used now...
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@garak0410 said in E-Mail Sending Has Stopped Working On Hardware Devices:
If there is any correlation between the copiers and Dell VTRX is that they are both non-windows/non-web browser based devices.
Neither. It's that they don't support whatever is desired on the end point. Windows would have the same issues. Whether it is the TLS level, TLS at all, SSL, have an old port, don't have the creds set up, etc. That's the issue.
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@garak0410 said in E-Mail Sending Has Stopped Working On Hardware Devices:
I set up SCAN TO EMAIL on some Enterprise HP printers we have and it also fails: General send to email error
It's very rare that devices of that ilk can send to office 365. The assumption is that normally a relay will be necessary. but is a cheap and simple thing to do.
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@scottalanmiller said in E-Mail Sending Has Stopped Working On Hardware Devices:
@garak0410 said in E-Mail Sending Has Stopped Working On Hardware Devices:
I set up SCAN TO EMAIL on some Enterprise HP printers we have and it also fails: General send to email error
It's very rare that devices of that ilk can send to office 365. The assumption is that normally a relay will be necessary. but is a cheap and simple thing to do.
They can talk perfectly when just using straight up SMTP with no auth and you have a connector set up. That is the point of connectors.
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@JaredBusch said in E-Mail Sending Has Stopped Working On Hardware Devices:
@scottalanmiller said in E-Mail Sending Has Stopped Working On Hardware Devices:
@garak0410 said in E-Mail Sending Has Stopped Working On Hardware Devices:
I set up SCAN TO EMAIL on some Enterprise HP printers we have and it also fails: General send to email error
It's very rare that devices of that ilk can send to office 365. The assumption is that normally a relay will be necessary. but is a cheap and simple thing to do.
They can talk perfectly when just using straight up SMTP with no auth and you have a connector set up. That is the point of connectors.
@garak0410 have you made a connector on O365 as @JaredBusch suggested earlier in the thread? I agree with him that that should fix the issue.
Why it worked before? I haven't a clue - really seems like it should not have because what you were doing was basic relaying.. which MS shouldn't allow.
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@Dashrender said in E-Mail Sending Has Stopped Working On Hardware Devices:
@JaredBusch said in E-Mail Sending Has Stopped Working On Hardware Devices:
@scottalanmiller said in E-Mail Sending Has Stopped Working On Hardware Devices:
@garak0410 said in E-Mail Sending Has Stopped Working On Hardware Devices:
I set up SCAN TO EMAIL on some Enterprise HP printers we have and it also fails: General send to email error
It's very rare that devices of that ilk can send to office 365. The assumption is that normally a relay will be necessary. but is a cheap and simple thing to do.
They can talk perfectly when just using straight up SMTP with no auth and you have a connector set up. That is the point of connectors.
@garak0410 have you made a connector on O365 as @JaredBusch suggested earlier in the thread? I agree with him that that should fix the issue.
Why it worked before? I haven't a clue - really seems like it should not have because what you were doing was basic relaying.. which MS shouldn't allow.
Sure thing...what needs to go in this connector? By Domain Name or by IP? And if by IP, will that be our internet gateway IP rather then our local 10. addresses? Finally, how long does it take to propagate?
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@garak0410 said in E-Mail Sending Has Stopped Working On Hardware Devices:
@Dashrender said in E-Mail Sending Has Stopped Working On Hardware Devices:
@JaredBusch said in E-Mail Sending Has Stopped Working On Hardware Devices:
@scottalanmiller said in E-Mail Sending Has Stopped Working On Hardware Devices:
@garak0410 said in E-Mail Sending Has Stopped Working On Hardware Devices:
I set up SCAN TO EMAIL on some Enterprise HP printers we have and it also fails: General send to email error
It's very rare that devices of that ilk can send to office 365. The assumption is that normally a relay will be necessary. but is a cheap and simple thing to do.
They can talk perfectly when just using straight up SMTP with no auth and you have a connector set up. That is the point of connectors.
@garak0410 have you made a connector on O365 as @JaredBusch suggested earlier in the thread? I agree with him that that should fix the issue.
Why it worked before? I haven't a clue - really seems like it should not have because what you were doing was basic relaying.. which MS shouldn't allow.
Sure thing...what needs to go in this connector? By Domain Name or by IP? And if by IP, will that be our internet gateway IP rather then our local 10. addresses? Finally, how long does it take to propagate?
I've never set one up, but in just thinking about - it seems that you would put the external IP address of your gateway. MS has no way of seeing your 10. address on a SMTP connection.
Propagation should be instant. When your machine attempts to connect, it should look to see if you have any connectors setup, if yes - check against them. Done.
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@Dashrender said in E-Mail Sending Has Stopped Working On Hardware Devices:
@garak0410 said in E-Mail Sending Has Stopped Working On Hardware Devices:
@Dashrender said in E-Mail Sending Has Stopped Working On Hardware Devices:
@JaredBusch said in E-Mail Sending Has Stopped Working On Hardware Devices:
@scottalanmiller said in E-Mail Sending Has Stopped Working On Hardware Devices:
@garak0410 said in E-Mail Sending Has Stopped Working On Hardware Devices:
I set up SCAN TO EMAIL on some Enterprise HP printers we have and it also fails: General send to email error
It's very rare that devices of that ilk can send to office 365. The assumption is that normally a relay will be necessary. but is a cheap and simple thing to do.
They can talk perfectly when just using straight up SMTP with no auth and you have a connector set up. That is the point of connectors.
@garak0410 have you made a connector on O365 as @JaredBusch suggested earlier in the thread? I agree with him that that should fix the issue.
Why it worked before? I haven't a clue - really seems like it should not have because what you were doing was basic relaying.. which MS shouldn't allow.
Sure thing...what needs to go in this connector? By Domain Name or by IP? And if by IP, will that be our internet gateway IP rather then our local 10. addresses? Finally, how long does it take to propagate?
I've never set one up, but in just thinking about - it seems that you would put the external IP address of your gateway. MS has no way of seeing your 10. address on a SMTP connection.
Propagation should be instant. When your machine attempts to connect, it should look to see if you have any connectors setup, if yes - check against them. Done.
I used my External Gateway...email still failing to send...(General send to email error) may have to try the other suggestions in this thread...
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@garak0410 said in E-Mail Sending Has Stopped Working On Hardware Devices:
@Dashrender said in E-Mail Sending Has Stopped Working On Hardware Devices:
@garak0410 said in E-Mail Sending Has Stopped Working On Hardware Devices:
@Dashrender said in E-Mail Sending Has Stopped Working On Hardware Devices:
@JaredBusch said in E-Mail Sending Has Stopped Working On Hardware Devices:
@scottalanmiller said in E-Mail Sending Has Stopped Working On Hardware Devices:
@garak0410 said in E-Mail Sending Has Stopped Working On Hardware Devices:
I set up SCAN TO EMAIL on some Enterprise HP printers we have and it also fails: General send to email error
It's very rare that devices of that ilk can send to office 365. The assumption is that normally a relay will be necessary. but is a cheap and simple thing to do.
They can talk perfectly when just using straight up SMTP with no auth and you have a connector set up. That is the point of connectors.
@garak0410 have you made a connector on O365 as @JaredBusch suggested earlier in the thread? I agree with him that that should fix the issue.
Why it worked before? I haven't a clue - really seems like it should not have because what you were doing was basic relaying.. which MS shouldn't allow.
Sure thing...what needs to go in this connector? By Domain Name or by IP? And if by IP, will that be our internet gateway IP rather then our local 10. addresses? Finally, how long does it take to propagate?
I've never set one up, but in just thinking about - it seems that you would put the external IP address of your gateway. MS has no way of seeing your 10. address on a SMTP connection.
Propagation should be instant. When your machine attempts to connect, it should look to see if you have any connectors setup, if yes - check against them. Done.
I used my External Gateway...email still failing to send...(General send to email error) may have to try the other suggestions in this thread...
If you screen shot your connector, @JaredBusch might have time later to look at it compared to his.
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@garak0410 said in E-Mail Sending Has Stopped Working On Hardware Devices:
@Dashrender said in E-Mail Sending Has Stopped Working On Hardware Devices:
@garak0410 said in E-Mail Sending Has Stopped Working On Hardware Devices:
@Dashrender said in E-Mail Sending Has Stopped Working On Hardware Devices:
@JaredBusch said in E-Mail Sending Has Stopped Working On Hardware Devices:
@scottalanmiller said in E-Mail Sending Has Stopped Working On Hardware Devices:
@garak0410 said in E-Mail Sending Has Stopped Working On Hardware Devices:
I set up SCAN TO EMAIL on some Enterprise HP printers we have and it also fails: General send to email error
It's very rare that devices of that ilk can send to office 365. The assumption is that normally a relay will be necessary. but is a cheap and simple thing to do.
They can talk perfectly when just using straight up SMTP with no auth and you have a connector set up. That is the point of connectors.
@garak0410 have you made a connector on O365 as @JaredBusch suggested earlier in the thread? I agree with him that that should fix the issue.
Why it worked before? I haven't a clue - really seems like it should not have because what you were doing was basic relaying.. which MS shouldn't allow.
Sure thing...what needs to go in this connector? By Domain Name or by IP? And if by IP, will that be our internet gateway IP rather then our local 10. addresses? Finally, how long does it take to propagate?
I've never set one up, but in just thinking about - it seems that you would put the external IP address of your gateway. MS has no way of seeing your 10. address on a SMTP connection.
Propagation should be instant. When your machine attempts to connect, it should look to see if you have any connectors setup, if yes - check against them. Done.
I used my External Gateway...email still failing to send...(General send to email error) may have to try the other suggestions in this thread...
With the connector in place, something I would try is - try telneting to port 25 from your PC and see if you can go through an entire send process from your PC (On the same network as the printer/AIO device).
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@Dashrender said in E-Mail Sending Has Stopped Working On Hardware Devices:
@garak0410 said in E-Mail Sending Has Stopped Working On Hardware Devices:
@Dashrender said in E-Mail Sending Has Stopped Working On Hardware Devices:
@garak0410 said in E-Mail Sending Has Stopped Working On Hardware Devices:
@Dashrender said in E-Mail Sending Has Stopped Working On Hardware Devices:
@JaredBusch said in E-Mail Sending Has Stopped Working On Hardware Devices:
@scottalanmiller said in E-Mail Sending Has Stopped Working On Hardware Devices:
@garak0410 said in E-Mail Sending Has Stopped Working On Hardware Devices:
I set up SCAN TO EMAIL on some Enterprise HP printers we have and it also fails: General send to email error
It's very rare that devices of that ilk can send to office 365. The assumption is that normally a relay will be necessary. but is a cheap and simple thing to do.
They can talk perfectly when just using straight up SMTP with no auth and you have a connector set up. That is the point of connectors.
@garak0410 have you made a connector on O365 as @JaredBusch suggested earlier in the thread? I agree with him that that should fix the issue.
Why it worked before? I haven't a clue - really seems like it should not have because what you were doing was basic relaying.. which MS shouldn't allow.
Sure thing...what needs to go in this connector? By Domain Name or by IP? And if by IP, will that be our internet gateway IP rather then our local 10. addresses? Finally, how long does it take to propagate?
I've never set one up, but in just thinking about - it seems that you would put the external IP address of your gateway. MS has no way of seeing your 10. address on a SMTP connection.
Propagation should be instant. When your machine attempts to connect, it should look to see if you have any connectors setup, if yes - check against them. Done.
I used my External Gateway...email still failing to send...(General send to email error) may have to try the other suggestions in this thread...
With the connector in place, something I would try is - try telneting to port 25 from your PC and see if you can go through an entire send process from your PC (On the same network as the printer/AIO device).
This is what I got when telnet with port 25..didn't get past the Mail From:
mail from: [email protected] 530 5.7.57 SMTP; Client was not authenticated to send anonymous mail during MAIL FROM [DM5PR05CA0003.namprd05.prod.outlook.com] -
OK, that's what the connector is supposed to fix. authentication is IP based instead of username/password based.
did you confirm that your PC's external IP is the same as the IP you provided in the connector? (google - what's my IP?)
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@scottalanmiller said in E-Mail Sending Has Stopped Working On Hardware Devices:
In most cases like this, we run a Postfix server on Fedora that accepts unauthenticated port 25 from the devices and then sends out authenticated through O365 or whatever. Often that's the only way.
Feels like a smtp relay for sure is the best way to handle networks where you have devices sending email.
Just imagine changing ISP or whatever and then have to go through all email capable devices to make sure they now have the proper outgoing email settings.
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@Dashrender said in E-Mail Sending Has Stopped Working On Hardware Devices:
OK, that's what the connector is supposed to fix. authentication is IP based instead of username/password based.
did you confirm that your PC's external IP is the same as the IP you provided in the connector? (google - what's my IP?)
Yessir...shows correct IP Address.
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@Pete-S said in E-Mail Sending Has Stopped Working On Hardware Devices:
@scottalanmiller said in E-Mail Sending Has Stopped Working On Hardware Devices:
In most cases like this, we run a Postfix server on Fedora that accepts unauthenticated port 25 from the devices and then sends out authenticated through O365 or whatever. Often that's the only way.
Feels like a smtp relay for sure is the best way to handle networks where you have devices sending email.
Just imagine changing ISP or whatever and then have to go through all email capable devices to make sure they now have the proper outgoing email settings.
I believe this is going to be in my near future...just weird for it to BAM! and stop...makes me wonder if I have a network issue...I had a feedback loop a few months ago that drove me crazy until I could finally locate it...
