Looked at Wayne's response and I'm still waiting for the patch. So I thought to myself, no one out at Sage is splitting the atom, so is it possible that the files are just a copy of files from the newer installs. (I don't use Office365 internally, so I had to test on some of my end users test servers set up for upgrades). So I connected to my end user who has 2018.10 and I took the virgin files from 2020 (99% sure the one I used was 2020.0). The file specifics are
ChilkatDotNet47.dll date modified is 1/30/2020 and the size is 8,320 KB
SY_EmailEngine.pvc date modified is 12/7/2019 and the size is 11 KB
I put the ChilkatDotNet47.dll file in the home folder and renamed SY_EmailEngine.pvc in the SY folder to .old and copied the new one in.
I went back to the Home folder, right clicked the ChilkatDotNet47.dll file and open with Regsvr32 in the Windows\SYSWOW64 folder.
It gave me a error, because this TEST server already had a 2020 install on it, but the error is basically "dll was loaded but the entry point was not found" (because it is already on the server in another location). Closed the RegSvr32 window. (I don't think you will get this error on a machine that hasn't already had ChilkatDotNet47.dll installed)
Logged in and tested it and it worked. I'm hoping someone can test this and confirm or not if we have a fix/work around to this issue.
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Jim Steele
Orion Business & Accounting Solutions
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Original Message:
Sent: 10-28-2021 12:17
From: Wayne Schulz
Subject: Sage 100 2018 email smtp error
There are no instructions in the file though it is named TLS_2018_8_ProgramFix.Zip
Unfortunately I update this customer to 2018.10 and then tried the install which produced the error.

I tried copying the program file to the local Sage folder but was waiting until everyone is done emailing to test.
Looks like maybe we will have to use an SMTP relay ( which I have not yet found a great source of instructions for IT on how to create - though I did think this looked comprehensive - https://adamtheautomator.com/office-365-smtp-relay )
I wish Sage was more proactive on this and created an actual knowledgebase article
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Wayne Schulz
Schulz Consulting
860-516-8990
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Original Message:
Sent: 10-28-2021 12:01
From: Jim Steele
Subject: Sage 100 2018 email smtp error
Sorry Folks, I'm chasing the same thing, was told yesterday by Sage Support that the original post about 2018.8, 9 or 10 is incorrect. That it only applies to 2018.8, any other will throw the error 65. They said that 2018.9 came out the same time as the other 2019 and 2020 updates, so they changed the email engine file on 2018.9 which caused problems with the patch and the .9 and .10 updates. I'm still waiting for the patch hotfix for 2 of my end-users, the others are in limbo until I can figure this out.
Jim Steele
Orion Business & Accounting Solutions
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Jim Steele
Orion Business & Accounting Solutions
Original Message:
Sent: 10-28-2021 11:44
From: Wayne Schulz
Subject: Sage 100 2018 email smtp error
I applied the supplied patch to a 2018.10 system and receive this ( image below ) when I test the email ( just an FYI in case someone else tries this as well )
So far two customers setup SMTP relays and did not install the patch.
The relay seems to be working for them.
Sage provides two files as part of their 2018 secret patch/hot fix:
Copy the ChilkatDotNet47.dll to the Sage 100 Server's ..\mas90\home folder. This is a new component.
Copy the SY_EmailEngine.pvc to the Sage 100 Server's ..\mas90\SY folder, after renaming the original file.
I'm unsure if the ChilkatDotNet47.DLL has to be registered somehow. The above two lines are the only instructions supplied.
I did not register the ChilkatDotNet47.dll which might have been part of the problem

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Wayne Schulz
Schulz Consulting
860-516-8990