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<p dir="auto">Randall,</p>
<p dir="auto">Having an AWS account and exploring it fully, I can tell you that group email to <50 there is a HARD LIMIT with the SES Mail Service. Also, the lack of any tech support at AWS is another problem. Had to get this answered by the Sales & Marketing groups. Tech Support was clueless!</p>
<p dir="auto">I found free versions of SMTP service providers to investigate - those with $0 cost options. <a href="https://www.emailtooltester.com/en/blog/free-smtp-servers/#gmail" style="color: #3983C4;">Here</a> you will find some analysis of SMTP sender servers and their limitations. Notably as well is the limitation of Google Services’ Gmail servers. Many people have Google but fewer are aware of the services and/or limitations of same.</p>
<p dir="auto">My SMTP Server use case, in real terms is for 50-100 emails pieces/mo from my domain address (this one) that comes with 100 BCC senders group (irregardless of To or BCC) in any single email. The limits of the domain servers have been shrinking and limitations due to BW and spam rules have been on the rise, in case you don’t know. FWIW, my server has been vetted for DKIM, etc. … Good luck.</p>
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Respectfully, <br />
Henry Seiden <br />
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<div class="markdown" style="white-space: normal;"><p dir="auto"><br>
On 30 Aug 2024, at 13:28, Randall Gellens wrote:</p>
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<p dir="auto">This seems like a configuration choice and hence up to different service providers. I'm unaware of any SMTP servers with built-in limits. Mine doesn't. From an SMTP perspective, the various message header fields are irrelevant to the SMTP protocol (aside from trace header fields); there is no difference at an SMTP level between 'To:' addresses and 'Bcc:' addresses.</p>
<p dir="auto">It's always risky to use the 'Bcc' field, though, because it's too easy to accidentally put the addresses in 'To' or "Cc". It's generally better to use a mailing list. Many SMTP servers support their own crude mailing lists (simple address expansion) and of course there are many mailing list servers available, such as Mailman.</p>
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