Dovecot Problem

[pixel8]

Hello,
hi to all, i just joined this forum, i've read a lot of posts but i have not resolved my problem.
I have a problem with Dovecot&Interspire. I have installed Interspire on a VPS, i have also installed on the same vps WHM/Cpanel to set the SMTP/IMAP/POP3 server with services Dovecot and Exim.
The SMTP from Interspire works correctly and the mails are sent correctly, i had to change in “Options for OpenSSL” from “+no_sslv2 +no_sslv3 +no_tlsv1 +no_tlsv1_1” default to “+no_sslv2” and with second option it works.
I have Autossl active with Cpanel certificate.
While if I try to connect with Interspire to POP3/Imap server, it doesn’t work, on Interspire remain on:
"Connecting to Mail Server...Please wait while we attempt to connect to your mail server."

While with other client i login in POP3/Imap server correctly and read the mails.

Dovecot log is:

dovecot: imap-login: Disconnected (disconnected before auth was ready, waited 0 secs): user=<>, rip=x.x.x.x, lip=x.x.x.x, secured, session=<4+KTKL11grxf2KdX>
dovecot: imap-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=x.x.x.x, lip=x.x.x.x, secured, session=<AnM5Kr11hLxf2KdX>
mail dovecot: pop3-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=x.x.x.x, lip=x.x.x.x, secured,

I tried to add others ssl protocols in dovecot conf but it give me always the same problems/errors.

How could i solve?

Th info of my VPS:

/etc/redhat-release:CentOS Linux release 7.5.1804 (Core)
/usr/local/cpanel/version:11.74.0.6
/var/cpanel/envtype:kvm
CPANEL=release

Thank you for help

 

[cPanelLauren]

Hi @pixel8

Just to be sure are you making configuration changes for dovecot at WHM>>Service Configuration>>MailServer Configuration or are you making them directly to the dovecot configuration file? As a warning, any changes you make manually will be overwritten the next time dovecot is restarted.

What are the SSL protocols you're allowing in the MailServer Configuration?


Thanks!

 

[pixel8]

Hello Lauren,
thank you for response. Yes, i did some mods in "MailServer Configuration" on WHM and when i did mods on dovecot.conf i haven't restarted Dovecot from WHM just to not overwrite the changes. Now i have this protocols in "SSL Protocols":
TLSv1 TLSv1.1 TLSv1.2 SSLv2 SSLv3, but i tested with all singles without success.

 

[cPanelLauren]

Hi @pixel8

Do you see something in the logs indicating the issue is an SSL protocol issue? I found some documentation on the 3rd party software Interspire here that might be worth a read:
Interspire

The error here:

dovecot: imap-login: Disconnected (disconnected before auth was ready, waited 0 secs): user=<>, rip=x.x.x.x, lip=x.x.x.x, secured, session=<4+KTKL11grxf2KdX>

Makes me wonder if something else isn't going on. Ultimately though it may be most efficient to troubleshoot this issue with the help of their support Interspire

 

[pixel8]

When i try to connect to Imap/pop3 server, maillog give me only the error quoted.
All server requirements are ok, SMTP with exim by Interspire works correctly.
I think it's the ssl but I'm not sure, because if I try on google that error, they always talk about SSL / TLS.
I have already contacted the Interspire support, I am waiting for an answer.

Thank you

 

[cPanelLauren]

Hi @pixel8

I would check with them (if it is an SSL/TLS issue) whether or not they use standard ciphers - They should be able to provide you the ciphers they support as well as protocols.

Thanks!

 

[pixel8]

Hi @pixel8

I would check with them (if it is an SSL/TLS issue) whether or not they use standard ciphers - They should be able to provide you the ciphers they support as well as protocols.

Thanks!

Ok, i'll update you as soon as they answer me,
thank you

 

[cPanelLauren]

Sounds good @pixel8 !