Email being blocked by ISP based on SMTP details

Jane Blonde

Hi Guys,

Which web host is the best for this?

Firstly, let me explain the issue...

I have a clients website set up on Blacknight, they use blacknight mail setting on their laptop on the go, so switch from ISP to ISP randomly. But when they do this their email sending stops working.

Blacknight tell me that this is because the ISPs are blocking the outgoing emails for spam reasons.

But this only happens to my clients on Blacknight and Register 365, it doesn't happen with Lets Host.

Does anyone know why this is?
Is there a way around (other than switching host)?

This is especially problematic for iPhone users.

JB
PS. please don't start slagging of individual hosts, I already know the good and bad guys.

n0brain3r

What outbound servers are you using and can you post a copy of the NDR? Without it I'd be just guessing why the mail is being rejected.

RichieD

Dont Vodafone require all their customers to go through Vodafones SMTP server?

That might be your problem

PogMoThoin

Just use Googles smtp:
http://kb.siteground.com/article/How_to_use_Googles_free_SMTP_server.html

Be sure set the reply to email