[Mailman-Users] cannot send mails to yahoo, hotmail and gmail

[Matthias Schmidt]

> Am 19.09.2016 um 00:39 schrieb Timothy Jasionowski <timothy.d at jasionow.ski>:
> 
> You may also want to make sure that you're configured SPF for your domain... I know that Google can be suspicious of new or small domains unless SPF (or even DKIM) is implemented.
> 
> SPF is easy to implement. You just need to put a TXT entry into DNS.

as others said before, your MTA needs to be configured correctly.
Besides SPF and DMARK your server has to have a reverse pointer, which resolves properly.
In mailman either set the reply-to to the original sender or the FROM to the list itself.
If that all is given and you’re not blacklisted, contact the postmasters via their help page.
If all is OK, they will white-list your server.

cheers
Matthias

> 
> Timothy
> 
> Sent from my iPhone
> 
>> On Sep 18, 2016, at 17:19, Mark Sapiro <mark at msapiro.net> wrote:
>> 
>>> On 09/17/2016 11:05 PM, Eko Budiharto wrote:
>>> dear all,
>>> I have a list using mailman. It cannot send mails to yahoo, hotmail and gmail. I check all setting in the mailman, but I still cannot find the problem yet. Please help me if someone who ever experience like this.
>> 
>> 
>> It's hard to tell without more information such as bounce messages or
>> log messages, but this could be a DMARC issue. See
>> <https://wiki.list.org/x/17891458> and <https://wiki.list.org/DEV/DMARC>.
>> 
>> It is also possible your server is on one or more blacklists. Check at,
>> e.g., <http://mxtoolbox.com/blacklists.aspx>
>> 
>> Also see <https://wiki.list.org/x/4030690>.
>> 
>> --
>> Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
>> San Francisco Bay Area, California    better use your sense - B. Dylan
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