On Sun, 6 Aug 2017, Jesper Wallin wrote:

> On Sun, Aug 06, 2017 at 05:29:04PM +0200, Walter Alejandro Iglesias wrote:
> Like Martijn pointed out, you're sending mail from a IP which is not
> intended for mail-servers. Most ISPs block outgoing traffic on port 25
> to prevent their customers sending spam when they get infected with
> viruses and such. Even if your ISP allow you to send mail, most
> providers will most likely classify it as spam/junk.

It can be very aggravating when an ISP still blocks port 25.  With the
great expansion of smart phones and people getting e-mail on them, it gets
in the way far more than it helps.  You can't expect every smart phone
user to change the SMTP settings for every hot spot where they want to use


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