[solved] Inbound Mailsettings for pop3 and Exchange 2016

We use an Exchange 2016 server and would like to pick up the mails via pop3

Blockquote SSL_connect returned=1 errno=0 state=SSLv3/TLS write client hello: wrong version number

Unfortunately, this error appears, what can I say?

https://community.zammad.org/t/asking-for-help-on-community/2262/2

Is there a form I can fill out?

Yeah well you deleted it from the creation post.

### Infos:
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* Used Zammad version: 
* Used Zammad installation source: (source, package, ...)
* Operating system: 
* Browser + version: 


### Expected behavior:

* 


### Actual behavior:

* 


### Steps to reproduce the behavior:

* 

Used Zammad version: 2.9.0-1556788014.16325a31
Used Zammad installation source: https://dl.packager.io/srv/deb/zammad/zammad/stable/ubuntu 18.04/main amd64 zammad amd64 2.9.0-1556788014.16325a31.bionic
Operating system: Ubuntu 18.04.2 LTS
Browser + version: Firefox 60.6.1esr (64-Bit)

Expected behavior:

Conntection to Exchange 2016 over POP3 port 110 with SSL/STARTTLS

Actual behavior:

during configuration the error appears:
SSL_connect returned=1 errno=0 state=SSLv3/TLS write client hello: wrong version number

Steps to reproduce the behavior:

  • add email connection
  • select pop3, adress of the mailserver, user passsword,
  • switch ssl to yes
  • port 110

Hey @tmueller,

i don’t know much about Exchange but “real” SSL POP3 should probably be on port 995.

Depends if you use SSL/STARTTLS.

cheers

ok i am working on that

but if i use pop3 without encryption this error appears:

Is Port 110 your unencrypted Port or the SSL port?
Sorry, but helping you is impossible with that information set.

110 is Exchange 2016 POP with STARTTLS

so it should be work with port 110 an ssl/starttls set to yes

but if set it to that port using pop3

Blockquote
SSL_connect returned=1 errno=0 state=SSLv3/TLS write client hello: wrong version number

Problem has been solved

Exchange 2016 set authentication to secure login per default, which requires certificate and so on :slight_smile:

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