[Mailman-Users] Find a smtp server to send out emails

Dominik Hoffmann dhoffmann at uwalumni.com
Wed Dec 7 17:40:48 EST 2016

Hi Leon:

Ever since my ISP, Verizon, quit relaying email messages from addresses not ending in @verizon.net, I have been exploring SMTP alternatives. I haven't come to a conclusion, but I found an interesting list at



P.S.: I have a stinking suspicion that the primary reason for Verizon's is not to combat spam, as stated, but to make it harder for their subscribers to be in a position where switching ISPs is easy, because they already use email addresses not tied to the ISP.

> On Dec 7, 2016, at 3:05 PM, Leon <best.sum at gmail.com> wrote:
> Hi, This problem is not caused by mailman, but I still want to give it a
> shot here. I'm hosting a mailing list on top of mailman. Emails are
> supposed to be sent out by AWS ses. However, ses requires that sender
> address must be verified, which leads to a problem that emails sent by
> subscribers to mailing list cannot be sent to other subcirbers, since their
> addresses are not verified. And it is impossible to verified every
> subscriber. Are there smtp service providers allowing unverified email
> address to send out emails, or do I have other solutions?
> Thanks.
> Leon
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