Fix SMTP command pipelining issue in email sending #338
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Problem: Some SMTP servers (particularly Postfix) reject connections with "improper command pipelining" errors when commands are sent too quickly. Solution: Increased delays to give SMTP servers more processing time between command groups, ensuring reliable email delivery regardless of server strictness. Tested with both authenticated and non-authenticated SMTP.
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Problem: Some SMTP servers (particularly Postfix) reject connections with "improper command pipelining" errors when commands are sent too quickly.
Solution: Increased delays to give SMTP servers more processing time between command groups, ensuring reliable email delivery regardless of server strictness.
Tested with both authenticated and non-authenticated SMTP.