ATT DSL blocked ports for email

[TAPtech]

Hi guys,

Anyone know if AT&T DSL is blocking ports for outgoing emails? Have a client with a baseline residential AT&T DSL service. Cannot get outlook to send any emails from their network having tried a couple of the different common SMTP ports.

Email credentials and ports work fine when connecting on a different network.

Anyone have experience with this?

 

[nlinecomputers]

By default AT&T blocks ports. You can call them and have the block lifted or use their servers for outgoing SMTP.

 

[TAPtech]

awesome, thank you for the info. Now I just need to go through the arduous process of getting the account information from the customer...

 

[YeOldeStonecat]

Yup they do. Best to use their servers unless you have access to the other SMTP server and can have it listen on really unique ports which ATT wouldn't block.

For resi dynamic accounts I don't think they will lift blocks...and if they say they do...I wouldn't trust it to last long, you're phone will be ringing from those clients in a few months.

 

[SilverLeaf]

I don't know about everyone else, but I'd rather take a beating than to have to deal with AT&T residential support. Admittedly they've been improving, but my experiences with this process are usually frustrating and time consuming at best.

As YeOldeStonecat said, I'd use their servers for SMTP, or switch to http as a possible alternative.

 

[TAPtech]

I usually use google's SMTP server to setup alerts on things like battery backups and server alerts.

This client has two different domains that are not hosted by AT&T. If I set up their outbound SMTP traffic to us AT&T server, will their emails have an improper "from" tag or an odd reply address or anything?

They really should not have this ISP, it is bottom level DSL and they have a CCTV system with remote viewing. it sure stinks on a 0.3mbps upload! Maybe it is time to lobby them for another ISP again...

 

[NYJimbo]

Cannot get outlook to send any emails from their network having tried a couple of the different common SMTP ports.

Which ports ? Almost all today will allow 587.

 

[ComputerRepairTech]

I don't know about everyone else, but I'd rather take a beating than to have to deal with AT&T residential support. Admittedly they've been improving, but my experiences with this process are usually frustrating and time consuming at best.

Yup I have boycotted them for life. I like how when they don't know the cause of the problem they start shooting out the most ridiculous excuses you've ever heard.

 

[TAPtech]

Which ports ? Almost all today will allow 587.

25, 2525, 587, 8025

I'm wondering now if I had problems sending emails when I brought my tab in which has Outlook installed, however that uses O365 Exchange. Almost positive that connected fine, I must have had to send numerous emails from it while I was there and would remember if there was an issue.

This is a client that was set up with home grade stuff and is really feeling the consequences. We are slowly moving over to actual business grade hardware but man is it painful!

 

[Ccomp5950]

they are blocking 587?

Didn't we just have this discussion the other day? I remember getting rather upset that people still cling to the outdated idea that port 25 blocking cuts down on spam.

"History of the internet", is going to be a book I write I think. People have forgotten so much about why we do things or did things and how the situation has changed since then.