[MlMt] Strange issue with exchange imap

[Steven M. Bellovin]

https://www.gocomics.com/doonesbury/2023/10/31

On 19 Jan 2024, at 11:20, Stephan Bösebeck wrote:

> The firewall is not blocking anything, running `openssl` on my machine 
> from commandline does connect and I can read emails.
>
> So, it is probably not firewall or any connection issue.
>
> on another machine with the same settings I do have the same problem 
> with MM. ☹️ So it is not this Mac.
>
> I'd have to try with another mail program, need to set that up and 
> try.
>
> Best
>
> On 19 Jan 2024, at 13:38, Alexandre Takacs wrote:
>
>> Running any firewall or AV on that machine ?
>>
>> Can you try with a different one (ie MM on anther Mac) ?
>>
>> Best regards
>>
>> On 19 Jan 2024, at 11:48, Stephan Bösebeck wrote:
>>
>>> what is frustrating, I can connect without problems using `openssl 
>>> -clrf -connect HOST:993`.
>>>
>>> login works, can list everything and read emails...
>>>
>>> but using MailMate does not work. really strange.
>>>
>>> On 19 Jan 2024, at 11:26, Stephan Bösebeck wrote:
>>>
>>>> No, not really. The latest one is CU13.
>>>>
>>>>
>>>> On 19 Jan 2024, at 9:26, Alexandre Takacs wrote:
>>>>
>>>>> Did you install a CU as of late ? Seen some similar issues in the 
>>>>> past (but moved to 365 for the better or the worst).
>>>>>
>>>>> On 19 Jan 2024, at 9:13, Stephan Bösebeck wrote:
>>>>>
>>>>>> yeah. We still need to migrate to 365, currently it is 
>>>>>> Exchange2019 
>>>>>> onsite._______________________________________________
>>>>> mailmate mailing list
>>>>> mailmate at lists.freron.com
>>>>> https://lists.freron.com/listinfo/mailmate_______________________________________________
>>>> mailmate mailing list
>>>> mailmate at lists.freron.com
>>>> https://lists.freron.com/listinfo/mailmate_______________________________________________
>>> mailmate mailing list
>>> mailmate at lists.freron.com
>>> https://lists.freron.com/listinfo/mailmate_______________________________________________
>> mailmate mailing list
>> mailmate at lists.freron.com
>> https://lists.freron.com/listinfo/mailmate_______________________________________________
> mailmate mailing list
> mailmate at lists.freron.com
> https://lists.freron.com/listinfo/mailmate


         —Steve Bellovin, https://www.cs.columbia.edu/~smb
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