Search found 15 matches

by jkissane
28 Nov 2023 07:37
Forum: How-to
Topic: Runng Let's Encrypt behind firewall
Replies: 3
Views: 11842

Re: Runng Let's Encrypt behind firewall

Thanks for the suggestion, the chances of getting port 80 opened from the outside are zero!

After doing a bit of reading of postfix, I've enabled TLS manually using the SSL cert I already head for the web interface. Just means an extra step to remember next year when the cert needs to be replaced.
by jkissane
23 Nov 2023 10:49
Forum: How-to
Topic: Runng Let's Encrypt behind firewall
Replies: 3
Views: 11842

Runng Let's Encrypt behind firewall

We were interested in turning on TLS on our EFA box (latest version). From reading on here, it seems I just needed to enable Let's Encrypt but ran into the problem below as the server is behind a firewall that only allows SMTP traffic through. Would you like to  Enable  Let's Encrypt? [y/n/c] y Savi...
by jkissane
19 Nov 2021 11:03
Forum: 4.x Bugs
Topic: eFa4.repo error
Replies: 1
Views: 4352

eFa4.repo error

This probably doesn't make a difference but I noticed the yum reports this message whenever I do an update. Invalid configuration value: failovermethod=priority in /etc/yum.repos.d/eFa4.repo; Configuration: OptionBinding with id "failovermethod" does not exist I commented out that line whi...
by jkissane
05 Jan 2021 15:10
Forum: How-to
Topic: Salesforce CRM emails being rejected
Replies: 2
Views: 6306

Re: Salesforce CRM emails being rejected

After a morning reading about postfix config, I think I've a check now that lets this junk through from Salesforce but still blocks the spammers. In main.cf I've modified: smtpd_sender_restrictions = permit_sasl_authenticated, check_sender_access pcre:/etc/postfix/allow_salesforce_junk , reject_non_...
by jkissane
05 Jan 2021 09:36
Forum: How-to
Topic: Salesforce CRM emails being rejected
Replies: 2
Views: 6306

Salesforce CRM emails being rejected

Lots of vendors we deal with (Dell, Cadence & others) are now using Salesforce for handing customer queries. Problem is that all such emails are rejected by EFA due to the fabricated domains that Salesforce use for sending emails. e.g. Jan 4 15:34:55 efa postfix/smtpd[26850]: NOQUEUE: reject: RC...
by jkissane
17 Aug 2020 08:27
Forum: Discussion
Topic: Something.doc.pdf|.docx.pdf|.xls.pdf|.xlsx.pdf blocked (Bad Content)
Replies: 9
Views: 15239

Re: Something.doc.pdf|.docx.pdf|.xls.pdf|.xlsx.pdf blocked (Bad Content)

Thanks for this info, recently people have started using Docusign internally which has been bombarding us with .doc.pdf files which were getting blocked. This rule addition makes life a lot easier.
by jkissane
21 Feb 2020 11:42
Forum: How-to
Topic: Outgoing email stopped
Replies: 1
Views: 6703

Re: Outgoing email stopped

I found how to not scan outgoing content by changing the content.scanning.rules file in /etc/MailScanner/rules. It's not the ideal solution so if anyone has any better suggestions would appreciate it.
by jkissane
20 Feb 2020 17:15
Forum: How-to
Topic: Outgoing email stopped
Replies: 1
Views: 6703

Outgoing email stopped

We're still using 3.0.2.6 as haven't got round to moving v4 just yet. One thing I've noticed is that outgoing mail is scanned & if it's blocked it doesn't get included in the quarantine report sent to the user. This cropped up as someone accidentally sent an attachment with a dodgy extension whi...
by jkissane
16 Apr 2019 15:37
Forum: 4.x Bugs
Topic: How to install EFA4 Beta RC2/RC3 on Hyper-V 2016
Replies: 4
Views: 7516

Re: How to install EFA4 Beta RC2/RC3 on Hyper-V 2016

Just to confirm (as you might expect) this works fine for VMware environments as well. Thanks!
by jkissane
04 Feb 2019 15:22
Forum: 4.x Bugs
Topic: Migration
Replies: 13
Views: 16867

Re: Migration

I'll give this a try tomorrow as bit too busy at work today.
by jkissane
31 Jan 2019 09:17
Forum: 4.x Bugs
Topic: Migration
Replies: 13
Views: 16867

Re: Migration

Similar to the above, shouldn't be a problem cloning our existing efa VM to test a migration.
by jkissane
21 Jan 2019 17:34
Forum: 4.x Bugs
Topic: EFA 4 beta
Replies: 79
Views: 8448116

Re: EFA 4 beta

Just tried an install of this into a fresh VM using the kickstart file, the install went ok although looks like it shut itself down rather than rebooting when it finished (wasn't watching it sorry). After I powered it on again, it went through the initial setup and looks to be alive & well. I wa...
by jkissane
17 Jan 2019 15:26
Forum: Discussion
Topic: Outgoing Mail
Replies: 10
Views: 13874

Re: Outgoing Mail

We're using efa for outgoing email also which is working fine but my boss asked me to check if there was a way to turn disable the spam checking in this case? Although personally I'm not sure why you might want to :?: Actually just realised we could presumably just whitelist our own domain & tha...
by jkissane
15 Jan 2019 16:10
Forum: How-to
Topic: SSL on 3.0.2.5 - how to?
Replies: 6
Views: 10825

Re: SSL on 3.0.2.5 - how to?

Old topic I know but I just did this to get rid of the warning when users connect to the server to check spam etc. Where I work can generate our own certs so all I had to do was change three lines in the ssl.conf file: SSLCertificateFile /etc/pki/tls/certs/efa_domainname_ie.crt SSLCertificateKeyFile...
by jkissane
14 Dec 2018 11:09
Forum: Introduction
Topic: Greetings from Ireland
Replies: 1
Views: 6104

Greetings from Ireland

Just started using EFA as a replacement for an aging home-grown anti-spam/antivirus system. Looking good so far for the test group as they've noticed nothing :)