Forward email trought Barracuda Cloud Services

[diego.carmignani (Diego)]

NethServer Version: 7.3.1611

Hi

Our NethServer send email trought Barracuda SpamFirewall appliance. Recently we bought Barracuda Cloud Services and we use this to check emails from Office 365. We want to use the same service with NethServer but i receive some errors
For example this:

Dec 20 09:46:13 email postfix/smtp[30217]: 66A6220763A6: to=diego.carmignani@cartierecarrara.com, relay=d121721.o.ess.barracudanetworks.com[64.235.150.200]:587, delay=31, delays=0.02/0/31/0, dsn=4.0.0, status=deferred (SASL authentication failed; server d121721.o.ess.barracudanetworks.com[64.235.150.200] said: 504 Unrecognized authentication type)

Dec 20 09:51:43 email postfix/smtp[30636]: connect to d121721.o.ess.barracudanetworks.com[64.235.154.67]:465: No route to host Dec 20 09:51:43 email postfix/smtp[30636]: EEF8620763A8: to=diego.carmignani@cartierecarrara.com, relay=none, delay=30, delays=0.01/0.05/30/0, dsn=4.4.1, status=deferred (connect to d121721.o.ess.barracudanetworks.com[64.235.154.67]:465: No route to host)

Can you help me to resolve one of this errors?

[saitobenkei]

How you forward mail to Barracuda Cloud: with smarthost feature of Nethserver?

Maybe you have to implement this:

HOWTO: Use SSL/port 465 in smarthost

Smarthost currently doesn’t permit to use port 465 with SSL to connect to a SMTP server: Tested in Nethserver V6.8 with Aruba SMTP server Maybe works in Nethserver V7 too 2017.06.21 EDIT: Yes, it works in v7 too 2021.03.10 EDIT: Added sslVersion parameter to stunnel.conf This is the solution: Install stunnel: yum install stunnel Create a stunnel file configuration: vi /etc/stunnel/stunnel.conf With these lines output=/var/log/stunnel [smtp-tls-wrapper] accept=127.0.0.1:11125 client…

[cfd10 (NethNoobie 10)]

This only works if you are using outbound authentication, but if you’re using an open relay from your server, you can’t use sTunnel. At least from what I am seeing.