# \[solved\] Inbound Mailsettings for pop3 and Exchange 2016
**URL:** https://community.zammad.org/t/solved-inbound-mailsettings-for-pop3-and-exchange-2016/2449
**Category:** Technical assistance
**Created:** [May 3, 2019, 7:25am UTC](https://community.zammad.org/t/solved-inbound-mailsettings-for-pop3-and-exchange-2016/2449 "2019-05-03T07:25:50Z")
**Posts on this page:** 11
**Page:** 1
### Author:  [@tmueller](https://community.zammad.org/u/tmueller)
#### Post date: [May 3, 2019, 7:25am UTC](https://community.zammad.org/t/solved-inbound-mailsettings-for-pop3-and-exchange-2016/2449/1 "2019-05-03T07:25:50Z")
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?
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### Author:  [@MrGeneration](https://community.zammad.org/u/MrGeneration)
#### Post date: [May 3, 2019, 9:34am UTC](https://community.zammad.org/t/solved-inbound-mailsettings-for-pop3-and-exchange-2016/2449/2 "2019-05-03T09:34:59Z")
[https://community.zammad.org/t/asking-for-help-on-community/2262/2](https://community.zammad.org/t/asking-for-help-on-community/2262/2)
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### Author:  [@tmueller](https://community.zammad.org/u/tmueller)
#### Post date: [May 3, 2019, 9:53am UTC](https://community.zammad.org/t/solved-inbound-mailsettings-for-pop3-and-exchange-2016/2449/3 "2019-05-03T09:53:45Z")
Is there a form I can fill out?
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### Author:  [@MrGeneration](https://community.zammad.org/u/MrGeneration)
#### Post date: [May 3, 2019, 11:49am UTC](https://community.zammad.org/t/solved-inbound-mailsettings-for-pop3-and-exchange-2016/2449/4 "2019-05-03T11:49:07Z")
Yeah well you deleted it from the creation post.
```auto
### Infos:
* Used Zammad version:
* Used Zammad installation source: (source, package, ...)
* Operating system:
* Browser + version:
### Expected behavior:
*
### Actual behavior:
*
### Steps to reproduce the behavior:
*
```
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### Author:  [@tmueller](https://community.zammad.org/u/tmueller)
#### Post date: [May 4, 2019, 5:10am UTC](https://community.zammad.org/t/solved-inbound-mailsettings-for-pop3-and-exchange-2016/2449/5 "2019-05-04T05:10:04Z")
Used Zammad version: 2.9.0-1556788014.16325a31
Used Zammad installation source: [https://dl.packager.io/srv/deb/zammad/zammad/stable/ubuntu](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
---
### Author:  [@dvnkln](https://community.zammad.org/u/dvnkln)
#### Post date: [May 6, 2019, 9:45am UTC](https://community.zammad.org/t/solved-inbound-mailsettings-for-pop3-and-exchange-2016/2449/6 "2019-05-06T09:45:50Z")
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.
> **[Enable and configure POP3 on an Exchange server](https://learn.microsoft.com/en-us/exchange/clients/pop3-and-imap4/configure-pop3?view=exchserver-2019)**
>
> Summary: Learn how to enable and configure POP3 on an Exchange server 2016 or 2019 for access by POP3 clients.
cheers
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### Author:  [@tmueller](https://community.zammad.org/u/tmueller)
#### Post date: [May 6, 2019, 10:20am UTC](https://community.zammad.org/t/solved-inbound-mailsettings-for-pop3-and-exchange-2016/2449/7 "2019-05-06T10:20:43Z")
ok i am working on that
but if i use pop3 without encryption this error appears:
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### Author:  [@MrGeneration](https://community.zammad.org/u/MrGeneration)
#### Post date: [May 10, 2019, 9:12pm UTC](https://community.zammad.org/t/solved-inbound-mailsettings-for-pop3-and-exchange-2016/2449/8 "2019-05-10T21:12:12Z")
Is Port 110 your unencrypted Port or the SSL port?
Sorry, but helping you is impossible with that information set.
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### Author:  [@tmueller](https://community.zammad.org/u/tmueller)
#### Post date: [May 11, 2019, 4:42am UTC](https://community.zammad.org/t/solved-inbound-mailsettings-for-pop3-and-exchange-2016/2449/9 "2019-05-11T04:42:10Z")
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
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### Author:  [@tmueller](https://community.zammad.org/u/tmueller)
#### Post date: [June 3, 2019, 2:08pm UTC](https://community.zammad.org/t/solved-inbound-mailsettings-for-pop3-and-exchange-2016/2449/10 "2019-06-03T14:08:08Z")
Problem has been solved
Exchange 2016 set authentication to secure login per default, which requires certificate and so on 🙂
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### Author:  [@system](https://community.zammad.org/u/system)
#### Post date: [October 1, 2019, 2:18pm UTC](https://community.zammad.org/t/solved-inbound-mailsettings-for-pop3-and-exchange-2016/2449/11 "2019-10-01T14:18:25Z")
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