office 365 "Cannot connect to SMTP server" "SSL negotiation failed"

Matthew Brady 80

Hi team, I work for Ricoh and we have had several clients call in today with an error message when trying to scan. The error message is "Cannot connect to SMTP server" "SSL negotiation failed". Upon checking their setups they are all using office365 accounts for SMTP authentication, all of them stopped working this morning.

Have their been any updates or changes we need to be aware of?

Thanks

Matthew Brady 80 Reputation points

2025-02-03T03:15:00.47+00:00

to add to this, out of 4 scans, 3 will return with the SSL negotiation has failed error and the 4th will go through
Jens Schels 0 Reputation points

2025-02-03T08:23:27.07+00:00

Got the same issue. SSL negotiation failed.
eyeyyeyeyeeyye 0 Reputation points

2025-02-03T09:27:31.6766667+00:00

We're having the same issue (SSL negotiation failed & cannot connect to SMTP server). It's been going on for a week. Nothing changed on our end. If you guys find a fix, please share it with us. Thank you.
GF 0 Reputation points

2025-02-03T10:31:59.43+00:00

Please advise how to solve.
Dawid Kuprowski 0 Reputation points

2025-02-03T10:50:48.3233333+00:00

We have the same issue with Ricoh devices.
Rafael Rozic 0 Reputation points

2025-02-03T11:51:13.33+00:00

Same issue on our end with our Ricoh device, just started last week. Some scans go through fine, but most of them fail (inconsistent). Also checked Exchange Online settings for the scanner account and "SmtpClientAuthenticationDisabled" was not set.

https://learn.microsoft.com/en-us/exchange/clients-and-mobile-in-exchange-online/authenticated-client-smtp-submission

Get-CASMailbox -Identity 'accountname'

Name ActiveSyncEnabled OWAEnabled PopEnabled ImapEnabled MapiEnabled SmtpClientAuthenticationDisabled

accountname True True True True True

But even setting it to $false(which should allow SMTP Auth) does not resolve the issue.

Set-CASMailbox -Identity 'accountname' -SmtpClientAuthenticationDisabled $false

Name ActiveSyncEnabled OWAEnabled PopEnabled ImapEnabled MapiEnabled SmtpClientAuthenticationDisabled

accountname True True True True True False

Any idea how to fix this?
Carstens, Helge 0 Reputation points

2025-02-03T12:31:17.5033333+00:00

Same here. 30 RICOH devices and all have the same errors.
Marcos Santos 0 Reputation points

2025-02-03T13:06:47.52+00:00

Same issue in Brazil using Konica Minolta devices. Started Today.
Dmitrii Solomkin 0 Reputation points

2025-02-03T14:41:53.1333333+00:00

Same problem here. Has anyone found a workaround?
Panayiotis Falas 0 Reputation points

2025-02-03T14:55:10.43+00:00

Same here. if any workaround let us know
Dux, Monika 0 Reputation points

2025-02-03T15:10:31.39+00:00

Same here! The problem started last week Monday, 27.01.2025.
Marius Tudor Leuce 0 Reputation points

2025-02-03T19:04:16+00:00

I got the same issue with Konica Minolta 5020i some scans work some i get the SSL error. Dose any one have an ideea about this issue ? Or how can we check with MS to fix this ?
Mark Siminski 0 Reputation points

2025-02-03T19:58:45.4766667+00:00

We are experiencing the same issue with Sharp MFPs, they are able to intermittently send out scan to emails but mostly error out when authenticating and we receive:"ERROR[3332]: Connection to SMTP server test failed", just started a day ago, more printers now starting to have this issue.
Spencer Brooks 0 Reputation points

2025-02-03T20:50:33.5733333+00:00

Same issue with us running Sharp copiers. Sometimes it works, sometimes it does not. Microsoft support does not recongize this as an issue, something is obviously broken.
Stephen Rayburn 0 Reputation points

2025-02-03T20:50:35.47+00:00

Same issue for our Org with Konica MFP's (error 107), would love a solution here.
Mateusz Olender 0 Reputation points

2025-02-04T09:25:55.6966667+00:00

Same problem with Konica and Oki printers/multidevice. I found that problem is related with automatic group policy upadate in inspection journal.

Date 30.01.2025, 08:34

Type of action GroupLifecyclePolicies_Get

Corelation ID: 6b8e81e6-623a-4b58-a090-d8326f2b404b

Category GroupManagement

Stansuccess

ID Object 4e3a7a89-1115-4f9f-a415-9cc830d92408

I can't find how to undo these settings. Changing group settings or creating an exclusion group from MFA doesn't make any changes
Tom Grant 0 Reputation points

2025-02-04T10:49:28.6833333+00:00

Hello! Same here with xerox printers (affected model Versalink B7030 Fault Code 016-781: SMTP Server Connect Error), they work intermittently with send&mail function. No way to debug more the error. We have an open ticket with ms.
Jan Schwärzel 0 Reputation points

2025-02-04T12:21:25.65+00:00

Same error with all sorts of printers (Brother, Sharp, Ricoh, Canon...). Always some SSL-error. We hade some customers with a 50/50 chance, every other try works.
Bognár Zalán 0 Reputation points

2025-02-04T14:58:51.3433333+00:00

Hi,
It's not a solution, but temporarily use the Google SMT server with an app password. On an old device, due to multi-factor authentication, it only works with an app password. This solves the problem while keeping encryption intact. You can also try using a Microsoft app password, but I'm not sure if that will work...
Server: smtp.gmail.com
TLS: 587
Alexander-9903 0 Reputation points

2025-02-04T19:06:42.34+00:00

We have the same issue with the Sharp MX-B455W but not with the Sharp MX-4070V. We will get a firmware update update tomorrow that is suppose to fix the issue.

6 answers

Dux, Monika 0 Reputation points

2025-02-04T09:39:11.7533333+00:00

Dear all, I just got a reply from Ricoh technician: "It looks to me as if Microsoft has disabled the cipher suites WITHOUT elliptic curves for TLS1.2. ECDHE is only possible with newer controllers from 18S onwards".

Our affected MFPs models are: MP C307 , MP 6055, IM C3000, MP C3004ex, and they all have an older controller 16S or 17S.

We also use IM C300, and, so far, this one seems to be affected.
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Tom Grant 0 Reputation points

2025-02-04T13:09:44.31+00:00

Just noticed troubles are with Xerox Versalink C7030 (supports up to TLS 1.2), but it's working 100% with Kyocera TASKalfa 3554ci (supports tls 1.3).
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Michele Ariis 5 Reputation points MVP

2025-02-04T16:18:10.2533333+00:00

Hi, on the Kyocera I activated as Hash SHA2(256/384) and it started working again.
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office 365 "Cannot connect to SMTP server" "SSL negotiation failed"

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