Need proxy for Outlook

stupidceo · Aug 5, 2026

Hi everyone!
I'm having trouble logging into an Outlook/Microsoft account. Rotating residential proxies and bad static SOCKS5 keep causing ERR_SSL_PROTOCOL_ERROR or ERR_SOCKS_CONNECTION_FAILED during login.
What type of proxies (ISP, Static Residential, Mobile) and specific Spanish providers would you recommend that work reliably with Microsoft authentication without getting flagged or breaking SSL sessions?

Brianvault · Aug 12, 2026

Those errors sound more like a proxy connection issue than Microsoft flagging the IP. A stable static ISP proxy would probably be the first thing to test, especially if rotating residential is interrupting the login session. Also make sure the provider properly supports SOCKS5/HTTPS before switching providers again.

proxygo · Aug 13, 2026

stupidceo said:
Hi everyone!
I'm having trouble logging into an Outlook/Microsoft account. Rotating residential proxies and bad static SOCKS5 keep causing ERR_SSL_PROTOCOL_ERROR or ERR_SOCKS_CONNECTION_FAILED during login.
What type of proxies (ISP, Static Residential, Mobile) and specific Spanish providers would you recommend that work reliably with Microsoft authentication without getting flagged or breaking SSL sessions?

bw has a ton of proxy sellers who can help you out
https://www.blackhatworld.com/forums/proxies-for-sale.112/

extremeboy · Aug 16, 2026

Normal data center semi dedicated proxies will work fine for your purpose as well.

As it supports Socks5 as well with port 587 which are need for that mailing.

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