Error: SMTP Error 523
What's Causing This Error
SMTP error 523 occurs when the email size exceeds the recipient's email server limits. These limits are set by the email server and only allow emails of a specific size to be accepted.
Solution - Here's How To Resolve It
Verifying the email server limits before sending emails is one of the solutions to this error. These limits are available within the email server, and the email recipient or the server administrator may provide this information.
To avoid this error from recurring, ensure that all emails sent to the email server are within the set size limits.
Other Common SMTP Errors (and Solutions)
- SMTP Error 101
- SMTP Error 111
- SMTP Error 221
- SMTP Error 250
- SMTP Error 420
- SMTP Error 421
- SMTP Error 422
- SMTP Error 431
- SMTP Error 432
- SMTP Error 441
- SMTP Error 442
- SMTP Error 446
- SMTP Error 447
- SMTP Error 449
- SMTP Error 450
- SMTP Error 452
- SMTP Error 453
- SMTP Error 454
- SMTP Error 455
- SMTP Error 458
- SMTP Error 459
- SMTP Error 471
- SMTP Error 451
- SMTP Error 500
- SMTP Error 501
- SMTP Error 502
- SMTP Error 503
- SMTP Error 504
- SMTP Error 510
- SMTP Error 511
- SMTP Error 512
- SMTP Error 513
- SMTP Error 515
- SMTP Error 517
- SMTP Error 521
- SMTP Error 522
- SMTP Error 530
- SMTP Error 531
- SMTP Error 533
- SMTP Error 534
- SMTP Error 535
- SMTP Error 538
- SMTP Error 540
- SMTP Error 541
- SMTP Error 542
- SMTP Error 543
- SMTP Error 546
- SMTP Error 547
- SMTP Error 550
- SMTP Error 551
- SMTP Error 552
- SMTP Error 553
- SMTP Error 554
- SMTP Error 555
- SMTP Error 556
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- SMTP error: failed to connect to server
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- SMTP error from remote mail server
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- SMTP server authentication error
- An unknown error occurred connecting to the SMTP server
- SMTP error: connection to server failed
- SMTP Error Codes
View all errors
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