Enhancement #2767
Customizable SMTP HELO value
Status: | CLOSED | Start date: | ||
---|---|---|---|---|
Priority: | Normal | Due date: | ||
Assignee: | - | % Done: | 100% | |
Category: | nethserver-mail-common | |||
Target version: | v6.5 | |||
Resolution: | NEEDINFO: | No |
Description
There are some cases where the server hostname does not fit the SMTP HELO value, e.g. hostname is not in public DNS.
Add a HeloHost
prop to override the Postifx default.
[ rif Nethesis 2014061110000101 ]
Associated revisions
main.cf: Customizable SMTP HELO value. Refs #2767
Set to empty string to get Postfix default.
History
#1 Updated by Davide Principi about 7 years ago
The commands below set up a custom-template based implementation:
# config setprop postfix HeloHost mail.cliente.it # mkdir -p /etc/e-smith/templates-custom/etc/postfix/main.cf # cat - > /etc/e-smith/templates-custom/etc/postfix/main.cf/90custom_helo <<EOF # # 90custom_helo (custom template) # rif 2014061110000101 #2767 # { \$postfix{'HeloHost'} ? "" : "# " }smtp_helo_name = { \$postfix{'HeloHost'} } EOF # signal-event nethserver-mail-common-save
#2 Updated by Davide Principi about 7 years ago
- Description updated (diff)
#3 Updated by Davide Principi almost 7 years ago
- Status changed from TRIAGED to ON_DEV
- Assignee set to Davide Principi
- % Done changed from 20 to 30
In branch b2750
#4 Updated by Davide Principi almost 7 years ago
Test case
Here we check the EHLO SMTP command sent by Postfix smtp
client process when it talks to other mail servers.
- Create a transport to the test smtp server:
mkdir -p /etc/e-smith/templates-custom/etc/postfix/transport echo "qa2727.tld smtp:[127.0.0.1]:11025" > /etc/e-smith/templates-custom/etc/postfix/transport/20QA2727 signal-event nethserver-mail-common-save
- Start
smtp-sink
SMTP server:smtp-sink -q EHLO,HELO -v -u postfix 127.0.0.1:11025 3 &
- Send a message:
echo "helloworld" | mail -s test someaddress@qa2727.tld
You should seesmtp-sink:
output on your console:smtp-sink: connect (AF_INET 127.0.0.1) smtp-sink: vstream_tweak_tcp: TCP_MAXSEG 16384 smtp-sink: fd=5: stream buffer size old=0 new=32768 smtp-sink: smtp_stream_setup: maxtime=100 enable_deadline=0 smtp-sink: EHLO davidep2.vboxnet0.tld smtp-sink: disconnect
The message is still on your queue (seemailq
output). To send it again flush the queue typing:postqueue -f
- Change
HeloHost
prop value,signal-event nethserver-mail-common-save
- Check
EHLO
line changes accordingly when message is sent, repeating the step above
#5 Updated by Davide Principi almost 7 years ago
- Status changed from ON_DEV to MODIFIED
- Assignee deleted (
Davide Principi) - % Done changed from 30 to 60
Test case
see previous comment
#6 Updated by Davide Principi almost 7 years ago
- Status changed from MODIFIED to ON_QA
- % Done changed from 60 to 70
In nethserver-testing:
nethserver-mail-common-1.3.3-1.19git5aeec2c.ns6.noarch.rpm
nethserver-mail-server-1.7.0-1.9git836d38e.ns6.noarch.rpm
nethserver-mail-filter-1.1.6-5.0git2ea5d3e8.ns6.noarch.rpm
#7 Updated by Giacomo Sanchietti almost 7 years ago
- Assignee set to Giacomo Sanchietti
#8 Updated by Giacomo Sanchietti almost 7 years ago
- Status changed from ON_QA to VERIFIED
- Assignee deleted (
Giacomo Sanchietti) - % Done changed from 70 to 90
Before setting custom HELO:
smtp-sink: connect (AF_INET 127.0.0.1) smtp-sink: vstream_tweak_tcp: TCP_MAXSEG 16384 smtp-sink: fd=5: stream buffer size old=0 new=32768 smtp-sink: smtp_stream_setup: maxtime=100 enable_deadline=0 smtp-sink: EHLO testserver.mydomain.loc smtp-sink: disconnect
Setting the new HELO and try again:
[root@testserver ~]# config setprop postfix HeloHost qa2727.tld [root@testserver ~]# signal-event nethserver-mail-common-save smtp-sink: connect (AF_INET 127.0.0.1) smtp-sink: vstream_tweak_tcp: TCP_MAXSEG 16384 smtp-sink: fd=5: stream buffer size old=0 new=32768 smtp-sink: smtp_stream_setup: maxtime=100 enable_deadline=0 smtp-sink: EHLO qa2727.tld smtp-sink: disconnect
Note: remember to update manual when releasing.
#9 Updated by Giacomo Sanchietti almost 7 years ago
- Status changed from VERIFIED to CLOSED
- % Done changed from 90 to 100
- nethserver-mail-server-1.8.0-1.ns6.noarch.rpm
- nethserver-mail-common-1.4.0-1.ns6.noarch.rpm
- nethserver-mail-filter-1.2.0-1.ns6.noarch.rpm