Email

[ronaldjerardmedina]

Does free outlook mail work with OTRS community version as Postmaster Mail Account?

or any suggestions for a free mail that will work in my community version of OTRS. Thanks in advance.

[zzz]

Why shouldn't it work?
Outlook/Gmail - you can use them all.

— Emin

[jojo]

everything which support POP3 and/or IMAP

[ronaldjerardmedina]

I understand, but we are using this community version for a year now with outlook and its working and just last week we cant fetch emails. Now we cant connect to POP3TLS, see attached pic.

[wurzel]

Hi,

what did you change? What did your provider change?

Can't connect errors usually is DNS, blocked ports.

Check your connections.

Flo

[root]

I understand, but we are using this community version for a year now with outlook and its working and just last week we cant fetch emails. Now we cant connect to POP3TLS, see attached pic.

Hi,

Usually an error with "Can't connect" point to the fact that the mail server is not reachable from the OTRS server. Are there any outgoing firewall rules configured (OTRS server, corporate firewall)?

Try to connect manually as the OTRS user with telnet

Code: Select all

outlook.office365.com 110

- Roy

[himbeertoni]

One hint, as people often suggest 'use telnet to connect'. This usually is a good Idea, but when connecting to TLS services, you better test via openssl s_client, in your case:

Code: Select all

% openssl s_client -starttls pop3 -connect outlook.office365.com:110

This results ins 'some' output, the important stuff is at the Bottom:

Code: Select all

SSL-Session:
    Protocol  : TLSv1.2
    Cipher    : ECDHE-RSA-AES256-GCM-SHA384
    Session-ID: 7A1700007ACE2396527FB0B8C398F301D1D7D4A61F8D3B36AA4C1B9D16B4C1D9
    Session-ID-ctx: 
    Master-Key: 5F4E3D9808883A37A2944700F6D2170F693799A1E4F88E402CFAB9664174C15DD7B8A4C5919F261AF36AB9EDB5E988B7
    Key-Arg   : None
    PSK identity: None
    PSK identity hint: None
    SRP username: None
    Start Time: 1597835947
    Timeout   : 300 (sec)
    Verify return code: 0 (ok)
---
+OK The Microsoft Exchange POP3 service is ready. [VgBJADEAUABSADAANwBDAEEAMAAxADYAMQAuAGUAdQByAHAAcgBkADAANwAuAHAAcgBvAGQALgBvAHUAdABsAG8AbwBrAC4AYwBvAG0A]

If the 'Verify return code' is != 0 you are having problems with the certificate verification (e.g. no roots installed). This can also lead to connection-problems, which are not revealed by connecting vi nc or telnet.

HTH
Clemens.

[root]

One hint, as people often suggest 'use telnet to connect'. This usually is a good Idea, but when connecting to TLS services, you better test via openssl s_client, in your case:

Code: Select all

% openssl s_client -starttls pop3 -connect outlook.office365.com:110

Hi,

In general, you're right. But when it comes to just checking connectivity a telnet connection is sufficient. Especially with TLS, which means the connection starts in the first place unencrypted.

- Roy

[skullz]

"its working and just last week we cant fetch emails."

somebody tinkering around firewall ??
try to use ip based address instead if you cant still figure out what happen..

[root]

"its working and just last week we cant fetch emails."

somebody tinkering around firewall ??
try to use ip based address instead if you cant still figure out what happen..

Hi,

Really IPs with Office365? I strongly advise using the DNS name. It's a geographic and load-balanced system and you can't rely on one single IP address. Check https://docs.microsoft.com/en-us/micros ... -worldwide and you see which addresses are used.

- Roy

[ronaldjerardmedina]

Appreciate all the replies, just a little update to you guys. We already added the needed ports on our corporate firewall still no telnet connection.

Code: Select all

telnet outlook.office365.com 

returns connection time out

I'm being blindsided by this one. still trying to fix this.

[root]

Appreciate all the replies, just a little update to you guys. We already added the needed ports on our corporate firewall still no telnet connection.

Code: Select all

telnet outlook.office365.com 

returns connection time out

I'm being blindsided by this one. still trying to fix this.

Hi,

you have to add the port to the telnet command. It's 110 for POP3:

Code: Select all

telnet outlook.office365.com  110 

- Roy