Deliverability to sbcglobal.net
Originating from the once widely used telephone service provider, Southwestern Bell, SBCGlobal.net has seen its own share of change. Now an AT&T affiliate, and most recently, part of Yahoo! SBCGlobal.net users may access their email via AT&T Yahoo! at ATT.net.

Emails Sent to sbcglobal.net: 12,697,046

Open Rate to sbcglobal.net: 1,607,489 (12.7%)

Date range:
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Sent vs Opens for sbcglobal.net

Date Sent Opens Open Rate
2/4/2023 7,568 694 0.0%
2/3/2023 11,953 1,245 0.0%
2/2/2023 12,024 1,909 0.0%
2/1/2023 14,175 2,095 0.0%
1/31/2023 12,079 1,878 0.0%
1/30/2023 12,174 1,649 0.0%
1/29/2023 4,278 893 0.0%
1/28/2023 7,274 1,240 0.0%
1/27/2023 8,938 1,128 0.0%
1/26/2023 9,789 1,756 0.0%
1/25/2023 12,418 1,663 0.0%
1/24/2023 12,262 1,731 0.0%
1/23/2023 11,058 1,794 0.0%
1/22/2023 3,702 380 0.0%
1/21/2023 5,692 1,103 0.0%
1/20/2023 8,975 1,140 0.0%
1/19/2023 13,805 2,221 0.0%
1/18/2023 17,550 2,104 0.0%
1/17/2023 9,455 1,227 0.0%
1/16/2023 9,997 1,473 0.0%
1/15/2023 4,378 479 0.0%
1/14/2023 7,365 1,118 0.0%
1/13/2023 11,103 1,167 0.0%
1/12/2023 11,750 1,945 0.0%
1/11/2023 11,679 1,492 0.0%
1/10/2023 11,115 1,803 0.0%
1/9/2023 12,255 1,860 0.0%
1/8/2023 6,277 859 0.0%
1/7/2023 8,542 1,747 0.0%
1/6/2023 11,458 1,653 0.0%

Blocks from sbcglobal.net

No blocks during specified time frame

Bounces from sbcglobal.net

Explanation of bounce codes

Message Count
550 5.2.1 ... Addressee unknown, relay= 2,268
550 5.2.1 ... blank mailhost - invalid address, relay= 268
NoMxRecord:0-0 206
Reached max queue time 180
SMTP; 554 30 Sorry, your message to cannot be delivered. This mailbox is disabled . 65
SMTP; 550 5.2.1 ... Addressee unknown, relay= 17
SMTP; 552 3 Requested mail action aborted, mailbox not found 4
SMTP; 552 1 Requested mail action aborted, mailbox not found 3
550 5.5.0 Requested action not taken: mailbox unavailable. 1
550 Requested action not taken: mailbox unavailable 1
551 SenderAuthorization: is not authorized to send emails to this service. 1
552 1 Requested mail action aborted, mailbox not found 1
552-5.2.2 The email account that you tried to reach is over quota and inactive. 552-5.2.2 1
554 5.0.0 bestmx_map_lookup: MX host http://aspmx2.googlemail.com. 1
554 5.0.0 bestmx_map_lookup: MX host http://aspmx3.googlemail.com. 1
SMTP; 550 5.2.1 ... blank mailhost - invalid address, relay= 1
The group has exceeded its quota for total number of bytes sent. 1

Methodology

Send and open statistics are updated daily. Bounces and blocks are updated in real-time. Every day, open statistics are updated for the last 14 days. Generally, you'll notice an increase of an open rate for a domain for a day over the course of 14 days, since not all open events occur the same day an email is sent. That means that open rate data is tied to the actual emails sent on a particular day.

Bounce and block codes are the codes as returned by the remote SMTP server after having been de-personalized. Meaning, unique identifiers present in SMTP codes are removed so that SMTP responses can be grouped for analysis. In certain cases, such as when the email is being relayed through an intermediary SMTP server, the remote SMTP server may not be the same as the MX record for the domain. SMTP codes are categorized as "bounces" vs "blocks" by internal human review. Bounces generally indicate an invalid email address. Blocks generally indicate a rejection of the email message but a valid email address.

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