The given key 'XXXXX' was not present in the dictionary.

Question asked by Mark Thornton - 5/6/2025 at 1:53 PM

Unanswered

I went looking through my ERROR logs and am finding messages stating a given key was not present. This is occurring every few days, sometime once a day, others multiple. Any ideas what this is referring to?

[2025.04.21] 10:34:15.947 [MAIL SERVICE] The given key '83929' was not present in the dictionary.

[2025.04.21] at System.Collections.Concurrent.ConcurrentDictionary`2.ThrowKeyNotFoundException(TKey key)

[2025.04.21] at System.Collections.Concurrent.ConcurrentDictionary`2.get_Item(TKey key)

[2025.04.21] at MailService.WCF.Services.EMailService.ConvertInternalMessage(String currentUserEmailAddress, String currentUserDomain, String currentUserUserName, Boolean isSysAdmin, String resourceEmail, MessageData message, UInt32 UID, String virtualAppPath, String absolutePath, MessageDataResult result, String folder)

[2025.04.21] at MailService.WCF.Services.EMailService.GetMessage(String emailAddress, String domain, String userName, Boolean isSysAdmin, Boolean isDomainAdmin, String token, MessageSelectInput input, String virtualAppPath, String absolutePath, String type)

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Dillon Murray Replied

5/6/2025 at 2:10 PM

Employee Post

Hi Mark,

I would like to take a look into this a little further, would it be okay if we went ahead and created a ticket for what you are seeing? I hope I can give you a little more clarity regarding this so just let me know if that works for you.

Thank you,

Dillon Murray System/Network Administrator SmarterTools Inc. www.smartertools.com

Mark Thornton Replied

5/6/2025 at 2:20 PM

Yep, I will submit a ticket.

Dillon Murray Replied

5/6/2025 at 2:21 PM

Employee Post

Hi Mark,

I can actually just create one off of this post if thats easier.

Thank you,

Dillon Murray System/Network Administrator SmarterTools Inc. www.smartertools.com

Mark Thornton Replied

5/6/2025 at 2:27 PM

Well, poop. When I try and create a ticket I get the spinning wheel of death on submission, FYI. Gonna keep trying.

Kyle Kerst Replied

5/8/2025 at 1:53 PM

Employee Post

Hey Mark :) Just wanted to give you a heads up that I was able to replicate the ticket submission issue when submitting with attachments so I'm getting that written up for development now.

Kyle Kerst Acting IT Manager SmarterTools Inc. www.smartertools.com

Gabriele Maoret - SERSIS Replied

5/12/2025 at 12:39 AM

We also see some similar reports every day in the "ERROR" log (some examples below), I'd be curious to know what they are referring to...

Examples:

[2025.05.03] 10:23:07.964 [MAIL SERVICE] The given key '4794' was not present in the dictionary.

[2025.05.03] 10:23:59.284 [MAIL SERVICE] The given key '3120' was not present in the dictionary.

[2025.05.03] [MAIL SERVICE] The given key '3121' was not present in the dictionary. at System.Collections.Concurrent.ConcurrentDictionary`2.ThrowKeyNotFoundException(TKey key)

[2025.05.05] 10:16:48.108 [MAIL SERVICE] The given key '42411' was not present in the dictionary.

[2025.05.05] 16:31:55.448 [MAIL SERVICE] The given key '740' was not present in the dictionary.

[2025.05.05] [MAIL SERVICE] The given key '743' was not present in the dictionary. at System.Collections.Concurrent.ConcurrentDictionary`2.ThrowKeyNotFoundException(TKey key)

[2025.05.06] 09:25:35.015 [MAIL SERVICE] The given key '937' was not present in the dictionary.

[2025.05.06] 10:24:04.727 [MAIL SERVICE] The given key '3161' was not present in the dictionary.

[2025.05.07] 12:07:37.208 [MAIL SERVICE] The given key '5687' was not present in the dictionary.

[2025.05.08] 14:13:36.622 [MAIL SERVICE] The given key '4890' was not present in the dictionary.

[2025.05.11] 09:49:43.139 [MAIL SERVICE] The given key '4945' was not present in the dictionary.

[2025.05.11] [MAIL SERVICE] The given key '4952' was not present in the dictionary. at System.Collections.Concurrent.ConcurrentDictionary`2.ThrowKeyNotFoundException(TKey key)

[2025.05.12] 07:54:27.351 [MAIL SERVICE] The given key '4960' was not present in the dictionary.

[2025.05.12] 07:54:46.563 [MAIL SERVICE] The given key '3532' was not present in the dictionary.

Gabriele Maoret - Head of SysAdmins and CISO at SERSIS Currently manages 6 SmarterMail installations (1 in the cloud for SERSIS which provides services to a few hundred third-party email domains + 5 on-premise for customers who prefer to have their mail server in-house)

Douglas Foster Replied

5/12/2025 at 6:35 AM

I reported this against build 9155. Too understand the cause, additional logging details were added to build 9238, but I have not yet upgraded to that version.

Mark Thornton Replied

5/14/2025 at 7:44 AM

I threw caution to the wind and upgraded to build 9245 last night to get the additional logging details for support.

Gabriele Maoret - SERSIS Replied

5/14/2025 at 8:07 AM

@Mark Thornton

Build 9245 is working very well for us (all our 6 servers are using it for more than 2 weeks now), so I think you will have no problems.

But this strange log keeps appearing every day and we still don't know what it means...

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