Outgoing STMP services? IP reputations?
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
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.
-- Please let me know if you need further assistance.
Thank you for your business. We appreciate our clients. Brian Carpenter EMWD.com
-- EMWD's Knowledgebase: https://clientarea.emwd.com/index.php/knowledgebase
EMWD's Community Forums http://discourse.emwd.com/
Am 03.04.20 um 21:03 schrieb Seth Seeger:
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?
Hi Seth,
I am maintaining a mailman3 installation where just few mails are processed per week. It is hosted on its own VM with postfix as SMTP service with DKIM and SPF, so mails are sent from the VM's IP address. I had several issues when starting the mail services with lots of mails getting refused and poor reputation.
But looking at the logs most of the well-known mail hosters give information why they deny mails from your server and what can be done to fix it. It is then "just" work to do and some mails to admins to white list your IP oder reset reputation for your IP. After 5 days all went well.
I propose to test your mail setup with online tools, there are a lot of them around in the net and they are free.
Kind regards Torge
participants (3)
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Brian Carpenter -
Seth Seeger -
Torge Riedel