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Posteo SMTP, IMAP & POP3 Settings (2026): Anonymous Signup, 1 EUR/mo Flat

Alaa 3 August 2026

Posteo settings for 2026: standard IMAP/SMTP/POP3 on single hostname posteo.de. 1 EUR/month flat, anonymous signup and payment. Ports 465/587 SMTP, 993 IMAP, 995 POP3.