About Hallowelt

Hallowelt · 12-11-2025

Hi all,got a problem with DKIM-Signature-Validation in our ESA (Cisco C695 with AsyncOS 15.5.3 build 024).Signature validation fails, if domain in DKIM-Header's d-tag is uppercase. For example, an email with these HeadersFrom: XXXXXX@GMX.DEDKIM-Signa...

Hallowelt · 11-02-2023

Dear all,while debugging SMTP-Authentication-Problems I notice the following strange behaviour:connecting with "openssl s_client -connect server.name:587 -starttls smtp"Trying username "Anton" (Base64 = QW50b24=)---------------AUTH LOGIN334 VXNlcm5hb...

Hallowelt · 05-19-2023

Dear all,from time to time we're observing scanning errors, mostly with ms office documents. Error message isInfo: MID 123456789 attachment 'XXXXXX.docx'Info: MID 123456789 was marked unscannable due to extraction failures. Reason: Error in extractio...

Hallowelt · 02-09-2023

Dear all,we're using an outgoing message filter in our ESA to strip compressed attachments from e-mails:--------------------------------------------------------Condition: Attachment File Info Rule: attachment-filetype == "Compressed" Action: drop-at...

Hallowelt · 12-19-2022

Dear all,lately we got this error from our sma:The Critical message is: The hermes process is recycled. Please check the system configuration or contact your administrator. Version: 14.2.0-217Any ideas, what is causing this?Should we worry about th...

Hallowelt · 12-12-2025

Hi Cristian,thanks for the information. So Cisco does it right and GMX wrong..Kind regards,Harald

Hallowelt · 06-23-2023

Dear all,this seems to be the this - currently open - bug.https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwf24244I guess, at least 14.2.1-020 can be added to the affected releases. Kind regards,Harald

Hallowelt · 05-26-2023

Hi Ken,tried with a docx test document containing 304 files and can't provoke the error with it. Error message is alwaysFri May 26 10:18:53 2023 Info: PF: MID XXXXXXXX Failed to open document - 'XXXXXX.docx' because it is not readable.Any idea what "...

Hallowelt · 05-22-2023

Hi Ken,thanks for your hint.unfortunately I've no access to the problematic files, butwill try to create a test docx.Kind regards,Harald

Hallowelt · 12-19-2022

Hi,the error appeared approximately 3 Weeks after applying an os upgrade. And it appeared only one time.Harald

Member Since	‎11-24-2021 12:05 AM
Date Last Visited	‎12-12-2025 04:47 AM
Posts	15

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ESA: Validating DKIM-Signature failed if signing domain is uppercase

Strange Problem with SMTP-Auth on Cisco ESA (Async-OS: 14.2.3-027)

ESA: Scanning error: (attachment) not readable

Content-Filter for compressed attachments drops OpenOffice Documents

Error message from sma concerning hermes process

Re: ESA: Validating DKIM-Signature failed if signing domain is upperca

Re: ESA: Scanning error: (attachment) not readable

Re: ESA: Scanning error: (attachment) not readable

Re: ESA: Scanning error: (attachment) not readable

Re: Error message from sma concerning hermes process