On 4/3/20 3:03 PM, Seth Seeger wrote:
Hello everyone,
Forgive me if this is the wrong list.
I’m curious to hear what users are doing for MM3 hosting and what you are using for outgoing services.
I am hosting a Mailman3 installation for a community that I am part of, and we have 6 lists which generated 136,000 outgoing emails last month. I’m currently hosting this on a 2-core 4GB RAM EC2 (t3a.medium) instance at Amazon. I went with Amazon because their outgoing email relay (SES) is free for the first 62,000 emails/month. (I didn’t do my homework - I thought that would be plenty!) I’d much rather be hosting on Linode, since their setup is waaaaay simpler and easier to understand.
I went with an SMTP service so that I wouldn’t have to deal with managing an IP address reputation…. (Any other SMTP relay service besides the Amazon SES/hosting would cost >$80/month.)
Do you use an SMTP relay service? Do you just send directly from your VM’s IP address? Do you have trouble with getting black listed? What have you done about your IP address reputation? Is DKIM and SPF enough to get past an IP address without an established reputation?
Thank you! Seth
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Hey Seth,
We run our Mailman 3 servers on Linode's platform. IP reputation is something we deal with all the time due to our Mailman 2/3 hosting service. I don't find it a pain at all. IP reputation can grow quickly as long as your lists are not generating a high number of bounces. We have found a high bounce rate is very bad for IP rep. There are some ISPs that will block new IP addresses that start suddenly sending out mail but we find it is easy to get off of those type of block lists. The general recommendation is to start slow with mail volume but I know that can be hard in some circumstances.
For our clients SPF/DKIM has been enough and we make sure all of our lists are running some sort of DMARC mitigation.
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