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IDProjectCategoryView StatusDate SubmittedLast Update
0000031SOGoBackend Mailpublic2009-06-23 04:062019-09-17 06:01
Assigned To 
PlatformOSOS Version
Product Version 
Target VersionFixed in Version 
Summary0000031: Support for SMTP SASL AUTH and SMTP TLS/SSL
DescriptionIt would be very nice if you can add support for SMTP SASL and SMTP
over TLS/SSL in the next version of SOGo.
Additional InformationThere are lot of examples of SMTP server (MTA) configurations that
require user's authentication:
For example, there might be "protected" mail destination addresses,
for example internal or restricted mailing lists, so that only
specific set of authenticated senders can post their messages to these
Or, second example is usage of Autoresponse - autoresponder for the
Postfix MTA (for more details please see: [^]). SMTP SASL authentication is also
required, in order to ensure that only appropriate authenticated user
can set autoresponse (vacation) message.
TagsNo tags attached.
Attached Files

-  Notes
MSmiatek (reporter)
2010-02-23 10:02
edited on: 2010-02-23 10:02

I need SASL support too :)
its not a good way to whitelist the hole sogo server on the mailsystem for everything

maybee (reporter)
2011-07-31 09:44

I hope that this feature will be developed soon, otherwise I have to switch the groupware again :(
corradofiore (reporter)
2011-07-31 10:29

Since there are many people interested in having this feature implemented, maybe we could ask for an estimate to Inverse and share the expense.
ffischer (reporter)
2011-11-16 07:01

+1 for SMTP AUTH

Could Pantomime be used for this? [^]
michal_b (reporter)
2014-01-28 08:05

I am also very interested in such ability (both SASL Auth, TLS/SSL for SMTP). I am a bit surprised that this feature is not included it today.
Please take an attention to this request.
thank you!
User avatar (0006455)
Christian Mack (developer)
2014-01-29 13:11

Auth PLAIN is implemented for SMTP, but without TLS/SSL.

As workaround we use stunnel in order to get STARTTLS encrypted connections to our mailserver.
michal_b (reporter)
2014-02-01 16:38

Hi Chris, yes, thank you. With stunnel it is possible to use SSL/TLS. I have just implemented it and it works. Just for completeness the different tcp port for inbound stunnel can be defined using "host:port" format of "SOGoSMTPServer" parameter.
tanstaafl (reporter)
2014-03-03 09:24

stunnel is simply a workaround.

Direct support for STARTTLS is really a mandatory thing in the SMTP/IMAP/POP world these days.

+1 for implementing real STARTTLS support.
obnox (reporter)
2014-03-05 22:32

+1 for STARTTLS of course

But please also consider implementing CRAM-MD5 AUTH method at least (DIGEST-MD5 would also be great).

Please don't stick only with PLAIN and/or LOGIN methods which are outdated. Digests a WAY more secure than anything else even without encryption!
tanstaafl (reporter)
2014-03-06 08:05


One thing at a time, please. Let's get proper STARTTLS working first (with PLAIN and LOGIN).

Then you can create feature requests for adding different/additional methods/mechanisms.
tanstaafl (reporter)
2014-03-06 08:07


This feature request was opened in June of 2009 - almost 5 YEARS ago.

Does this mean there is no real interest by the developers to get it working?

I can't imagine it would be *that* hard - I mean, there *has* to be some open source code out there that you can 'borrow' for the heavy lifting?
jceb (reporter)
2015-05-04 15:18

+1 for STARTTLS. Is there any news on this issue?
djordjije (reporter)
2015-06-08 17:45

6 years old issue. any news on this issue?
zhb (reporter)
2015-10-31 21:04

Please implement this feature, it's really useful.
zhb (reporter)
2016-04-01 02:41

Dear developers,

Any update on this 7-year old feature request? SMTP over TLS is really a mandatory feature nowaday.
zhb (reporter)
2016-09-08 10:33

Dear developers,

Any update? Still no plan to support SMTP over TLS?
raz (reporter)
2017-04-23 07:17
edited on: 2017-04-23 07:19

Hey guys,
Is the smtp over tls auth feature in progress?
any news about it?

pavinjoseph (reporter)
2017-07-05 18:45

Hope to have STARTTLS/TLS support soon!
zhb (reporter)
2018-05-07 22:53

Dear developers,

Any update? Still no plan to support SMTP over TLS?
Khussein (reporter)
2018-05-15 10:38
edited on: 2018-05-15 10:39

Hello Devs,

any chance to add this feature in next version, would be great.

johan.smits (reporter)
2019-02-13 10:58

Any news on this?
djordjije (reporter)
2019-04-27 15:45

Still no progress on this issue?
No need to hurry, I'm a very patient person...
florian (reporter)
2019-09-17 06:01

Happy anniversary :(

I can't believe that you were not able to implement STARTTLS for SMTP in the last 10 years.

- Issue History
Date Modified Username Field Change
2009-06-23 04:06 djordjije New Issue
2010-02-23 10:02 MSmiatek Note Added: 0000626
2010-02-23 10:02 MSmiatek Note Edited: 0000626
2011-07-31 09:44 maybee Note Added: 0002771
2011-07-31 10:29 corradofiore Note Added: 0002772
2011-11-16 07:01 ffischer Note Added: 0003010
2014-01-28 08:05 michal_b Note Added: 0006446
2014-01-29 13:11 Christian Mack Note Added: 0006455
2014-02-01 16:38 michal_b Note Added: 0006467
2014-03-03 09:24 tanstaafl Note Added: 0006604
2014-03-05 22:32 obnox Note Added: 0006644
2014-03-06 08:05 tanstaafl Note Added: 0006653
2014-03-06 08:07 tanstaafl Note Added: 0006654
2015-05-04 15:18 jceb Note Added: 0008445
2015-06-08 17:45 djordjije Note Added: 0008601
2015-10-29 15:29 francis Relationship added related to 0003374
2015-10-31 21:04 zhb Note Added: 0009063
2016-04-01 02:41 zhb Note Added: 0009912
2016-09-08 10:33 zhb Note Added: 0010638
2017-04-23 07:17 raz Note Added: 0011751
2017-04-23 07:18 raz Note Edited: 0011751 View Revisions
2017-04-23 07:19 raz Note Edited: 0011751 View Revisions
2017-07-05 18:45 pavinjoseph Note Added: 0012038
2018-05-07 22:53 zhb Note Added: 0012867
2018-05-15 10:38 Khussein Note Added: 0012879
2018-05-15 10:39 Khussein Note Edited: 0012879 View Revisions
2019-02-13 10:49 Christian Mack Relationship added has duplicate 0004676
2019-02-13 10:58 johan.smits Note Added: 0013348
2019-04-27 15:45 djordjije Note Added: 0013556
2019-09-17 06:01 florian Note Added: 0013752

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