Universal SMTP facility/setup over many ISP's

I have Huawie Vodacom phone, wife uses a MTN sim card as data service in the phone, we have a Telkom LTE Wireless modem and we have a MWEB email account.<br> <br> Not one of the above suppliers could tell me how I can send emails from the Hauwei phone without disconecting the Wireless!!!<br> <br> And my Laptop runs the same SMTP configuration as always, just changed with 3 easy steps the SMTP setup on phone ... and wife has a BIG smile on her face!!<br> <br> KEY FREE SMTP SERVER FEATURES<br> <br> Heightened Security; Well-Guarded Privacy: Through TLS/SSL encrypted channels, the Free SMTP server slaps the doors on unauthorized access, fortifying your data against all sorts of intruders and **********.<br> <br> Roots Out Location Dependency: No more running for cover; the Free SMTP server ****s location dependency outright. Even if port 587 (the recommended port) runs into the ground, it's a unique SMTP server feature that email flow can be directed on alternate ports.<br> <br> Steadfast; Forever Unfailing: Should an email fail (it happens sometimes) at the first go,you're served a courtesy email message for the same but not before attempts to resend the mail fail. Most times though, emails make their destination