Hi.
Right now I have 97% delivery from the emails going through this list as well as a couple of emails coming to me from Mastodon and some notification services I run. I am struggling to identify the 3% right now as every other report I pull up seems to be empty. I will wait tomorrow. At this rate I need to have more than 10,000 emails per month which means I am on the right package but the list will probably quieten down after this flurry of traffic so I need to work out the cheapest provider and whether its better to go with something that gives me around 10k emails per month and then I pay overage traffic when you lot are noisy.
One setting I didn't see until later is the ability to have the return envelope be from a custom domain as right now its with Sendgrid. Doesn't make much difference really but I would have gone that route if I had known about it. I can't see an option to change this now in the web interface without deleting and re-adding the verified domain and going through the DNS verification again which is not something I will do just now.
What's really concerning me with this setup is Mailman doesn't see the bounce messages so will keep trying to deliver new messages to people who have potentially deleted their account. That gives us bad ratings and without the NDRs being delivered back to Mailman there is nothing I can do. I haven't seen this type of email system though which doesn't change the return envelope.
I'm sending out the emails via authenticated SMTP from Exim. There is a REST interface which is probably easier for most app developers to use but in the email world its easier to stick with SMTP. Mailman expects to deliver the list traffic to a local MTA on localhost, and I find if I do anything else it slows down the delivery cignificantly.
Andrew.
-----Original Message-----
From: Ben Mustill-Rose
Hi.
For me what has killed it is lack of email sending or sporadic sending. When I ran the lists for BCAB I sent out nearly 5000 emails a day and had very good response rates for removing Ips from blocklists etc. These days I am lucky if I get a response and its most often a no. Having my own email rejected by Office365 this morning was the last straw.
Andrew.
-----Original Message----- From: Jason White via Blind-sysadmins
Sent: Tuesday, May 9, 2023 3:33 PM To: blind-sysadmins@lists.hodgsonfamily.org Cc: Jason White Subject: [Blind-sysadmins] Re: Using Sendgrid as outbound mailer from now On 9/5/23 09:29, Andrew Hodgson via Blind-sysadmins wrote:
Honestly its really hard work running a mail server these days that isn’t one of the big companies.
I've noticed the same, although I have succeeded so far in not ending up on a block list with any of the large providers. I suspect intermittent delivery issues from this address, but I don't have any clear evidence that it's a result of being hosted on my own server.
My other e-mail address is with Microsoft 365, which gives better fault tolerance and spam filtering than I can implement myself. On the other hand, Microsoft 365's spam filter generates false positives as well, sometimes for legitimate mailing list traffic from a large provider - resolved for now by placing the affected addresses on an allow list.
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