Another situation you might want multiple backends is when switching providers. Rather than big-bang swap *all* email sends to a new provider, you might want to move only low-value emails first, or a percentage of your user base, and iterate.
On Sun, 30 Jan 2022 at 20:59, Steven Mapes <st...@jigsawtech.co.uk> wrote: > I should add I also have other instances my clients use a custom AWS SES > backend I wrote used for various types of sends (bulk, newsletters) but > generally sends where they need SNS notifications to trigger HTTPS > postbacks for certain results from the send such as bounced mails, spam > reports etc where those the requests go back to the django server to be > handled whereas other mail sends may go via O365 / Google for general, > often internal, notifications and emails send. > > I have another client who has two mail providers where one is the primary > and if that fails due to the SMTP server being down, the platform othen > fails over to re-send via the backup SMTP server. > > *Steve Mapes* > Steven Mapes T/A Jigsaw Tech > E: st...@jigsawtech.co.uk > <https://link.getmailspring.com/link/cf847694-1156-4ba3-bc92-5f42d434b...@getmailspring.com/0?redirect=mailto%3Asteve%40jigsawtech.co.uk&recipient=ZGphbmdvLWRldmVsb3BlcnNAZ29vZ2xlZ3JvdXBzLmNvbQ%3D%3D> > P: +44(0)7974220046 > W: https://www.jigsawtech.co.uk/ > <https://link.getmailspring.com/link/cf847694-1156-4ba3-bc92-5f42d434b...@getmailspring.com/1?redirect=https%3A%2F%2Fwww.jigsawtech.co.uk%2F&recipient=ZGphbmdvLWRldmVsb3BlcnNAZ29vZ2xlZ3JvdXBzLmNvbQ%3D%3D> > [image: LinkedIn] > <https://link.getmailspring.com/link/cf847694-1156-4ba3-bc92-5f42d434b...@getmailspring.com/2?redirect=https%3A%2F%2Fwww.linkedin.com%2Fin%2Fstevemapes%2F&recipient=ZGphbmdvLWRldmVsb3BlcnNAZ29vZ2xlZ3JvdXBzLmNvbQ%3D%3D>[image: > Twitter] > <https://link.getmailspring.com/link/cf847694-1156-4ba3-bc92-5f42d434b...@getmailspring.com/3?redirect=https%3A%2F%2Ftwitter.com%2Fstevenamapes&recipient=ZGphbmdvLWRldmVsb3BlcnNAZ29vZ2xlZ3JvdXBzLmNvbQ%3D%3D> > The entire content of this email message is confidential. This also > applies to any files attached to it. This email is intended for an > individual or entity to whom they are addressed. In case you are not the > addressee of this email, and you have received it in error, contact the > system manager immediately. The information could be very sensitive, and it > is intended for the specific addressee. This email should not be > disseminated, distributed or copied. If you have received this email and it > was not for you, please notify the sender by email immediately and > afterward delete this email from your system. Disclosing, copying, > distributing, or taking any action in reliance on the email content is > strictly prohibited. > On Jan 30 2022, at 3:38 pm, Florian Apolloner <f.apollo...@gmail.com> > wrote: > > I do not understand why you would need multiple email backends to send > from different addresses. Can you elaborate on that? > > [image: Sent from Mailspring] > On Sunday, January 30, 2022 at 1:18:48 PM UTC+1 st...@jigsawtech.co.uk > wrote: > > I've a big +1 on changing email config to a dictionary to support multiple > backends as it's very much a common occurrence for both clients of mine and > for my own businesses. Most of the use cases are when they main site sends > emails from no-reply@ such as for password resets but then when > alternative email are required for sales and/or customer service email > address where it's handled via the website. Currently I end up creating a > custom settings.py dictionary to store the settings so I can then refer to > that using the connection for swapping the backend to send from. > > On Sunday, 30 January 2022 at 11:14:54 UTC f.apo...@gmail.com wrote: > > Hi Jacob, > > I wouldn't be opposed to move email configuration into a dictionary > (somewhere between -0 and +0). Although if we plan to do that we should > rethink all the existing session variables and other as well I guess and > figure out if we should move more settings to dictionaries. > > > why shouldn't it makes sense to have different email backends? If you > have a staging system you may want to use you local SMTP-relay, while in > production > you may for instance use AWSs SES > <https://docs.aws.amazon.com/ses/latest/dg/Welcome.html> service. > > This specific example at hand is imo not a good motivator to add support > for multiple backends because the settings would imo be different. Take > databases as an example: You also don't have staging/production in there > but switch the actual values in the default database. > > > `EMAIL = [...]` > > I am not sure a list makes sense here and would go for similarity with > CACHES & DATABASES since you'd usually identify the backend via a unique > name or so. Also DATABASES & CACHES have an OPTIONS dict which is the > passed on to the backend, I think we should follow suit here. > > > Personally, I would prefer SMTP = {...} > > I do not think SMTP would be a good fit because many services allow HTTP > submission, so what we are sending is actually an email and smtp is just a > protocol implementation in the backend of AWS SES or so. > > As for other email backends that do require different options: I do not > see an issue when they simply take `EMAIL_AWS_SES_KEY` and document it as > such; this doesn't require us to add more flexibility to email backends… > > So I guess it boils down to the following questions: > > * Do we want to support multiple (at the same time) email backends, if > yes we would move to a settings dict anyways… > * If the answer to the above is no, what value does putting it into a > single dict give us? > > In the past I think I have argued for a SECURITY_HEADERS (or similar) dict > because it allows us to check the dictionary keys easily for typos; emails > probably don't suffer from that problem as badly as security related > settings. > > I hope this can get the discussion going. > > Cheers, > Florian > On Sunday, January 30, 2022 at 9:29:27 AM UTC+1 jacob...@gmail.com wrote: > > Well, that ticket is 8 years old and in the meantime other email backends > have emerged, requiring different configuration options. > I made this proposal after attempting to fix a 14 year old open ticket > #6989 but this was ultimately postponed, see comment by > Carlton Gibson on > https://github.com/django/django/pull/13728#issuecomment-987762791 > > To summarize the discussion from 7 years ago > > Collin Anderson wrote: > > I don't see any benefit to moving email settings to a dictionary. It is > helpful for databases and caches because there can be multiple backends. > > It makes the popular "from local_settings import *" convention harder to > use. What's wrong with 6 individual settings? If the goal is to allow > > multiple email backends, then let's make that the ticket goal. > > > and Carl Meyer replied: > > I agree with Collin; unless we are adding new capabilities (i.e. multiple > configured email backends, which it seems nobody really wants), it's hard > > to find any actual benefit from this change to justify the churn (and the > additional complexities of working with dictionary settings in > partial-override scenarios). > > > why shouldn't it makes sense to have different email backends? If you have > a staging system you may want to use you local SMTP-relay, while in > production > you may for instance use AWSs SES > <https://docs.aws.amazon.com/ses/latest/dg/Welcome.html> service. That > service may require additional configuration settings not available in the > local smtp backend. > I can also imagine that in some situations it may make sense to have two > email backends concurrently. We maybe should rethink about that. > > > -- > You received this message because you are subscribed to a topic in the > Google Groups "Django developers (Contributions to Django itself)" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/django-developers/R8ebGynQjK0/unsubscribe > <https://link.getmailspring.com/link/cf847694-1156-4ba3-bc92-5f42d434b...@getmailspring.com/4?redirect=https%3A%2F%2Fgroups.google.com%2Fd%2Ftopic%2Fdjango-developers%2FR8ebGynQjK0%2Funsubscribe&recipient=ZGphbmdvLWRldmVsb3BlcnNAZ29vZ2xlZ3JvdXBzLmNvbQ%3D%3D> > . > To unsubscribe from this group and all its topics, send an email to > django-developers+unsubscr...@googlegroups.com > <https://link.getmailspring.com/link/cf847694-1156-4ba3-bc92-5f42d434b...@getmailspring.com/5?redirect=mailto%3Adjango-developers%2Bunsubscribe%40googlegroups.com&recipient=ZGphbmdvLWRldmVsb3BlcnNAZ29vZ2xlZ3JvdXBzLmNvbQ%3D%3D> > . > To view this discussion on the web visit > https://groups.google.com/d/msgid/django-developers/aec69c4e-a7c2-4002-bb24-21ab11d89343n%40googlegroups.com > <https://link.getmailspring.com/link/cf847694-1156-4ba3-bc92-5f42d434b...@getmailspring.com/6?redirect=https%3A%2F%2Fgroups.google.com%2Fd%2Fmsgid%2Fdjango-developers%2Faec69c4e-a7c2-4002-bb24-21ab11d89343n%2540googlegroups.com%3Futm_medium%3Demail%26utm_source%3Dfooter&recipient=ZGphbmdvLWRldmVsb3BlcnNAZ29vZ2xlZ3JvdXBzLmNvbQ%3D%3D> > . > > -- > You received this message because you are subscribed to the Google Groups > "Django developers (Contributions to Django itself)" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to django-developers+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/django-developers/CF847694-1156-4BA3-BC92-5F42D434B955%40getmailspring.com > <https://groups.google.com/d/msgid/django-developers/CF847694-1156-4BA3-BC92-5F42D434B955%40getmailspring.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "Django developers (Contributions to Django itself)" group. To unsubscribe from this group and stop receiving emails from it, send an email to django-developers+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/django-developers/CAMyDDM36bxLazURA33zRG5RjOBu1sB30%2BdN3mUGRLLb9gGzxSg%40mail.gmail.com.
